Laurent SANCHEZ-PALENCIA

Disordered quantum gases under control (2009)

Sanchez-Palencia, Laurent, Lewenstein, Maciej

When attempting to understand the role of disorder in condensed-matter physics, one faces severe experimental and theoretical difficulties and many questions are still open. Two of the most...

One-Dimensional Anderson Localization in Certain Correlated Random Potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord, ...

We investigate Anderson localization in weak 1D speckle potentials. We show that long-range correlations induce effective mobility edges corresponding to sharp crossovers between regions here...

One-Dimensional Anderson Localization in Certain Correlated Random Potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord, ...

We investigate Anderson localization in weak 1D speckle potentials. We show that long-range correlations induce effective mobility edges corresponding to sharp crossovers between regions here...

One-Dimensional Anderson Localization in Certain Correlated Random Potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord A., ...

We investigate Anderson localization of ultracold atoms in weak 1D correlated random potentials resulting from laser speckles. We show the existence of effective mobility edges corresponding to sharp...

One-Dimensional Anderson Localization in Certain Correlated Random Potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord, ...

We investigate Anderson localization of ultracold atoms in weak 1D correlated random potentials resulting from laser speckles. We show the existence of effective mobility edges corresponding to sharp...

One-Dimensional Anderson Localization in Certain Correlated Random Potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord, ...

We investigate Anderson localization of ultracold atoms in weak 1D correlated random potentials resulting from laser speckles. We show the existence of effective mobility edges corresponding to sharp...

One-dimensional Anderson localization in certain correlated random potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord, ...

We study Anderson localization of ultracold atoms in weak, one-dimensional speckle potentials, using perturbation theory beyond Born approximation. We show the existence of a series of sharp...

One-dimensional Anderson localization in certain correlated random potentials (2009)

Lugan, Pierre, Aspect, Alain, Sanchez-Palencia, Laurent, Delande, Dominique, Grémaud, Benoît, Müller, Cord, ...

We study Anderson localization of ultracold atoms in weak, one-dimensional speckle potentials, using perturbation theory beyond Born approximation. We show the existence of a series of sharp...

Disordered quantum gases under control (2009)

Sanchez-Palencia, Laurent, Lewenstein, Maciej

When attempting to understand the role of disorder in condensed-matter physics, one faces severe experimental and theoretical difficulties and many questions are still open. Two of the most...

Disordered quantum gases under control (2009)

Sanchez-Palencia, Laurent, Lewenstein, Maciej

When attempting to understand the role of disorder in condensed-matter physics, one faces severe experimental and theoretical difficulties and many questions are still open. Two of the most...

Dipole Oscillations of a Fermi Gas in a Disordered Trap: Damping and Localization (2008)

Pezzé, Luca, Hambrecht, Ben, Sanchez-Palencia, Laurent

We study the dipole oscillations of an ideal Fermi gas in a disordered trap. We show that even weak disorder induces strong damping of the oscillations and we identify a metal-insulator crossover:...

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Disorder-induced trapping versus Anderson localization in Bose-Einstein condensates expanding in disordered potentials (2008)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Aspect, Alain

We theoretically investigate the localization of an expanding Bose-Einstein condensate with repulsive atom-atom interactions in a disordered potential. We focus on the regime where the initial...

Disorder-induced trapping versus Anderson localization in Bose-Einstein condensates expanding in disordered potentials (2008)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Aspect, Alain

We theoretically investigate the localization of an expanding Bose-Einstein condensate with repulsive atom-atom interactions in a disordered potential. We focus on the regime where the initial...

Disorder-induced trapping versus Anderson localization in Bose-Einstein condensates expanding in disordered potentials (2008)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Aspect, Alain

We theoretically investigate the localization of an expanding Bose-Einstein condensate with repulsive atom-atom interactions in a disordered potential. We focus on the regime where the initial...

Density Modulations in an Elongated BEC Released from a Disordered Potential: What Can We Learn ? (2008)

Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We observe large density modulations in time-of-flight images of elongated Bose-Einstein condensates, initially confined in a harmonic trap and in the presence of weak disorder. The development of...

Density Modulations in an Elongated BEC Released from a Disordered Potential: What Can We Learn ? (2008)

Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We observe large density modulations in time-of-flight images of elongated Bose-Einstein condensates, initially confined in a harmonic trap and in the presence of weak disorder. The development of...

Density modulations in an elongated Bose-Einstein condensate released from a disordered potential (2008)

Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We observe large density modulations in time-of-flight images of elongated Bose-Einstein condensates, initially confined in a harmonic trap and in the presence of weak disorder. The development of...

Density modulations in an elongated Bose-Einstein condensate released from a disordered potential (2008)

Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We observe large density modulations in time-of-flight images of elongated Bose-Einstein condensates, initially confined in a harmonic trap and in the presence of weak disorder. The development of...

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Direct observation of Anderson localization of matter-waves in a controlled disorder (2008)

Billy, Juliette, Josse, Vincent, Zuo, Zhanchun, Bernard, Alain, Hambrecht, Ben, Lugan, Pierre, ...

We report the observation of exponential localization of a Bose-Einstein condensate (BEC) released into a one-dimensional waveguide in the presence of a controlled disorder created by laser speckle ....

Disorder-induced trapping versus Anderson localization in Bose-Einstein condensates expanding in disordered potentials (2008)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Aspect, Alain

We theoretically investigate the localization of an expanding Bose-Einstein condensate with repulsive atom-atom interactions in a disordered potential. We focus on the regime where the initial...

Disorder-induced trapping versus Anderson localization in Bose-Einstein condensates expanding in disordered potentials (2008)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Aspect, Alain

We theoretically investigate the localization of an expanding Bose-Einstein condensate with repulsive atom-atom interactions in a disordered potential. We focus on the regime where the initial...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2007)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

Density Modulations in an Elongated BEC Released from a Disordered Potential (2007)

Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We observe large density modulations in time-of-flight images of elongated Bose-Einstein condensates, initially confined in a harmonic trap and in the presence of weak disorder. The development of...

Density modulations in an elongated Bose-Einstein condensate released from a disordered potential (2007)

Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We observe large density modulations in time-of-flight images of elongated Bose-Einstein condensates, initially confined in a harmonic trap and in the presence of weak disorder. The development of...

Localization of Bogolyubov Quasiparticles in Interacting Bose-Einstein Condensates Subjected to Correlated Random Potentials (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We study the Anderson localization of Bogolyubov quasiparticles in an interacting Bose-Einstein condensate (with healing length \xi) subjected to a random potential (with finite correlation length...

Anderson Localization of Bogolyubov Quasiparticles in Interacting Bose-Einstein Condensates (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We study the Anderson localization of Bogolyubov quasiparticles in an interacting Bose-Einstein condensate (with healing length \xi) subjected to a random potential (with finite correlation length...

Disorder-Induced Order in Two-Component Bose-Einstein Condensates (2007)

Niederberger, Armand, Schulte, Thomas, Wehr, Jan, Lewenstein, Maciej, Sanchez-Palencia, Laurent, Sacha, Krzysztof

We propose and analyze a general mechanism of disorder-induced order in two-component Bose-Einstein condensates, analogous to corresponding effects established for XY spin models. We show that a...

Disorder-Induced Order in Two-Component Bose-Einstein Condensates (2007)

Niederberger, Armand, Schulte, Thomas, Wehr, Jan, Lewenstein, Maciej, Sanchez-Palencia, Laurent, Sacha, Krzysztof

We propose and analyze a general mechanism of disorder-induced order in two-component Bose-Einstein condensates, analogous to corresponding effects established for XY spin models. We show that a...

Ultracold Bose Gases in 1D Random Potentials: From Lifshits Glasses to Bose-Einstein Condensates (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas...

Ultracold Bose Gases in 1D Random Potentials: From Lifshits Glasses to Bose-Einstein Condensates (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas...

Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials (2007)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Shlyapnikov, Georgy, Aspect, Alain

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential with correlation length \sigma_R. For speckle...

Ultracold Bose Gases in 1D Disorder: From Lifshits Glass to Bose-Einstein Condensate (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas...

Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials (2007)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Shlyapnikov, Georgy, Aspect, Alain

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential with correlation length \sigma_R. For speckle...

Anderson Localization of Bogolyubov Quasiparticles in Interacting Bose-Einstein Condensates (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We study the Anderson localization of Bogolyubov quasiparticles in an interacting Bose-Einstein condensate (with healing length \xi) subjected to a random potential (with finite correlation length...

Anderson Localization of Bogolyubov Quasiparticles in Interacting Bose-Einstein Condensates (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Sanchez-Palencia, Laurent

We study the Anderson localization of Bogolyubov quasiparticles in an interacting Bose-Einstein condensate (with healing length \xi) subjected to a random potential (with finite correlation length...

Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials (2007)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Shlyapnikov, Georgy, Aspect, Alain

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential with correlation length \sigma_R. For speckle...

Ultracold Bose Gases in 1D Disorder: From Lifshits Glass to Bose-Einstein Condensate (2007)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas...

Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials (2006)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Shlyapnikov, Georgy, Aspect, Alain

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential. For speckle potentials used in quantum gases,...

Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials (2006)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Shlyapnikov, Georgy, Aspect, Alain

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential. For speckle potentials used in quantum gases,...

Anderson Localization of Expanding Bose-Einstein Condensates in Random Potentials (2006)

Sanchez-Palencia, Laurent, Clément, David, Lugan, Pierre, Bouyer, Philippe, Shlyapnikov, Georgy V., Aspect, Alain

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential with correlation length \sigma_R. For speckle...

Controllable 3D atomic Brownian motor in optical lattices (2006)

Dion, Claude M., Sjolund, Peder, Petra, Stefan J. H., Jonsell, Svante, Nylen, Mats, Sanchez-Palencia, Laurent, ...

We study a Brownian motor, based on cold atoms in optical lattices, where atomic motion can be induced in a controlled manner in an arbitrary direction, by rectification of isotropic random...

Controllable 3D atomic Brownian motor in optical lattices (2006)

Dion, Claude M., Sjolund, Peder, Petra, Stefan J. H., Jonsell, Svante, Nylen, Mats, Sanchez-Palencia, Laurent, ...

We study a Brownian motor, based on cold atoms in optical lattices, where atomic motion can be induced in a controlled manner in an arbitrary direction, by rectification of isotropic random...

Ultracold Bose Gases in 1D Random Potentials: From Lifshits Glasses to Bose-Einstein Condensates (2006)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions, ranging from zero to the Thomas-Fermi regime. We show that for very small interactions, the Bose...

Ultracold Bose Gases in 1D Disorder: From Lifshits Glass to Bose-Einstein Condensate (2006)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas...

Ultracold Bose Gases in 1D Random Potentials: From Lifshits Glasses to Bose-Einstein Condensates (2006)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions, ranging from zero to the Thomas-Fermi regime. We show that for very small interactions, the Bose...

Ultracold Bose Gases in 1D Random Potentials: From Lifshits Glasses to Bose-Einstein Condensates (2006)

Lugan, Pierre, Clément, David, Bouyer, Philippe, Aspect, Alain, Lewenstein, Maciej, Sanchez-Palencia, Laurent

We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions, ranging from zero to the Thomas-Fermi regime. We show that for very small interactions, the Bose...

Smoothing effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Screening effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Screening effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Screening effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Screening effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Smoothing effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle (2006)

Clément, David, Varòn, Andrès, Retter, Jocelyn, Sanchez-Palencia, Laurent, Aspect, Alain, Bouyer, Philippe

We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose-Einstein condensate) in the presence of disorder. A 1D random potential is created via laser speckle...

Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle (2006)

Clément, David, Varòn, Andrès F., Retter, Jocelyn A., Sanchez-Palencia, Laurent, Aspect, Alain, Bouyer, Philippe

We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose-Einstein condensate) in the presence of disorder. A 1D random potential is created via laser speckle...

Disorder-Induced Order: From Classical Spin Systems to Ultracold Atomic Gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of disorder-induced order by studying a particular case of classical ferromagnetic XY model in a random uniaxial field which breaks the continuous symmetry of the...

Disorder-Induced Order: From Classical Spin Systems to Ultracold Atomic Gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of disorder-induced order by studying a particular case of classical ferromagnetic XY model in a random uniaxial field which breaks the continuous symmetry of the...

Disorder contra Mermin-Wagner-Hohenberg Effect: From Classical Spin Systems to Ultracold Atomic Gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO) by studying a case of classical ferromagnetic XY model in a random uniaxial field which breaks the continuous symmetry of the...

Disorder contra Mermin-Wagner-Hohenberg Effect: From Classical Spin Systems to Ultracold Atomic Gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO) by studying a case of classical ferromagnetic XY model in a random uniaxial field which breaks the continuous symmetry of the...

Disorder contra Mermin-Wagner-Hohenberg Effect: From Classical Spin Systems to Ultracold Atomic Gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO) by studying a case of classical ferromagnetic XY model in a random uniaxial field which breaks the continuous symmetry of the...

Disorder contra Mermin-Wagner-Hohenberg effect: From classical spin systems to ultracold atomic gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO), in which long-range order is induced by a random field that breaks the continuous symmetry of the model. We particularly focus on...

Disorder versus the Mermin-Wagner-Hohenberg effect: From classical spin systems to ultracold atomic gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO), in which long-range order is induced by a random field that breaks the continuous symmetry of the model. We particularly focus on...

Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle (2006)

Clément, David, Varòn, Andrès, Retter, Jocelyn, Sanchez-Palencia, Laurent, Aspect, Alain, Bouyer, Philippe

We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose-Einstein condensate) in the presence of disorder. A 1D random potential is created via laser speckle...

Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle (2006)

Clément, David, Varòn, Andrès, Retter, Jocelyn, Sanchez-Palencia, Laurent, Aspect, Alain, Bouyer, Philippe

We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose-Einstein condensate) in the presence of disorder. A 1D random potential is created via laser speckle...

Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle (2006)

Clément, David, Varòn, Andrès, Retter, Jocelyn, Sanchez-Palencia, Laurent, Aspect, Alain, Bouyer, Philippe

We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose-Einstein condensate) in the presence of disorder. A 1D random potential is created via laser speckle...

Smoothing effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Disorder versus the Mermin-Wagner-Hohenberg effect: From classical spin systems to ultracold atomic gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO), in which long-range order is induced by a random field that breaks the continuous symmetry of the model. We particularly focus on...

Disorder versus the Mermin-Wagner-Hohenberg effect: From classical spin systems to ultracold atomic gases (2006)

Wehr, Jan, Niederberger, Armand, Sanchez-Palencia, Laurent, Lewenstein, Maciej

We propose a general mechanism of random-field-induced order (RFIO), in which long-range order is induced by a random field that breaks the continuous symmetry of the model. We particularly focus on...

Smoothing effect and delocalization of interacting Bose-Einstein condensates in random potentials (2006)

Sanchez-Palencia, Laurent

We theoretically investigate the physics of interacting Bose-Einstein condensates at equilibrium in a weak (possibly random) potential. We develop a perturbation approach to derive the condensate...

Experimental study of the transport of coherent interacting matter-waves in a 1D random potential induced by laser speckle (2006)

Clément, David, Varòn, Andrès, Retter, Jocelyn, Sanchez-Palencia, Laurent, Aspect, Alain, Bouyer, Philippe

We present a detailed analysis of the 1D expansion of a coherent interacting matterwave (a Bose-Einstein condensate) in the presence of disorder. A 1D random potential is created via laser speckle...

Demonstration of a controllable three-dimensional Brownian motor in symmetric potentials (2005)

Sjolund, Peder, Petra, Stefan J. H., Dion, Claude M., Jonsell, Svante, Nylen, Mats, Sanchez-Palencia, Laurent, ...

We demonstrate a Brownian motor, based on cold atoms in optical lattices, where isotropic random fluctuations are rectified in order to induce controlled atomic motion in arbitrary directions. In...

Inhibition of Transport of a Bose-Einstein Condensate in a Random Potential (2005)

Retter, Jocelyn, Varon, Andres F., Clément, David, Hugbart, Mathilde, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Suppression of Transport of an Interacting Elongated Bose-Einstein Condensate in a Random Potential (2005)

Clément, David, Varon, Andrès F., Hugbart, Mathilde, Retter, Jocelyn, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Bose-Einstein Condensates in Optical Quasicrystal Lattices (2005)

Sanchez-Palencia, Laurent, Santos, Luis

We analyze the physics of Bose-Einstein condensates confined in 2D quasi-periodic optical lattices, which offer an intermediate situation between ordered and disordered systems. First, we analyze the...

Inhibition of Transport of a Bose-Einstein Condensate in a Random Potential (2005)

Retter, Jocelyn, Varon, Andres, Clément, David, Hugbart, Mathilde, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Suppression of Transport of an Interacting Elongated Bose-Einstein Condensate in a Random Potential (2005)

Clément, David, Varon, Andrès, Hugbart, Mathilde, Retter, Jocelyn, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Bose-Einstein Condensates in Optical Quasicrystal Lattices (2005)

Sanchez-Palencia, Laurent, Santos, Luis

We analyze the physics of Bose-Einstein condensates confined in 2D quasi-periodic optical lattices, which offer an intermediate situation between ordered and disordered systems. First, we analyze the...

Inhibition of Transport of a Bose-Einstein Condensate in a Random Potential (2005)

Retter, Jocelyn, Varon, Andres, Clément, David, Hugbart, Mathilde, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Suppression of Transport of an Interacting Elongated Bose-Einstein Condensate in a Random Potential (2005)

Clément, David, Varon, Andrès, Hugbart, Mathilde, Retter, Jocelyn, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Bose-Einstein Condensates in Optical Quasicrystal Lattices (2005)

Sanchez-Palencia, Laurent, Santos, Luis

We analyze the physics of Bose-Einstein condensates confined in 2D quasi-periodic optical lattices, which offer an intermediate situation between ordered and disordered systems. First, we analyze the...

Inhibition of Transport of a Bose-Einstein Condensate in a Random Potential (2005)

Retter, Jocelyn, Varon, Andres, Clément, David, Hugbart, Mathilde, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Suppression of Transport of an Interacting Elongated Bose-Einstein Condensate in a Random Potential (2005)

Clément, David, Varon, Andrès, Hugbart, Mathilde, Retter, Jocelyn, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Bose-Einstein Condensates in Optical Quasicrystal Lattices (2005)

Sanchez-Palencia, Laurent, Santos, Luis

We analyze the physics of Bose-Einstein condensates confined in 2D quasi-periodic optical lattices, which offer an intermediate situation between ordered and disordered systems. First, we analyze the...

Inhibition of Transport of a Bose-Einstein Condensate in a Random Potential (2005)

Retter, Jocelyn, Varon, Andres, Clément, David, Hugbart, Mathilde, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Bose-Einstein Condensates in Optical Quasicrystal Lattices (2005)

Sanchez-Palencia, Laurent, Santos, Luis

We analyze the physics of Bose-Einstein condensates confined in 2D quasi-periodic optical lattices, which offer an intermediate situation between ordered and disordered systems. First, we analyze the...

Suppression of Transport of an Interacting Elongated Bose-Einstein Condensate in a Random Potential (2005)

Clément, David, Varon, Andrès, Hugbart, Mathilde, Retter, Jocelyn, Bouyer, Philippe, Sanchez-Palencia, Laurent, ...

We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom,...

Directed transport of Brownian particles in a double symmetric potential (2004)

Sanchez-Palencia, Laurent

We investigate the dynamics of Brownian particles in internal state- dependent symmetric and periodic potentials. Although no space or time symmetry of the Hamiltonian is broken, we show that...

Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From Fermi glass to quantum spin glass and quantum percolation (2004)

Sanpera, Anna, Kantian, Adrian, Sanchez-Palencia, Laurent, Zakrzewski, Jakub, Lewenstein, Maciej

We investigate atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices in the limit of strong atom-atom interactions. We derive the effective Hamiltonian describing the dynamics of...

Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From Fermi glass to quantum spin glass and quantum percolation (2004)

Sanpera, Anna, Kantian, Adrian, Sanchez-Palencia, Laurent, Zakrzewski, Jakub, Lewenstein, Maciej

We investigate atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices in the limit of strong atom-atom interactions. We derive the effective Hamiltonian describing the dynamics of...

Directed transport of Brownian particles in a double symmetric potential (2004)

Sanchez-Palencia, Laurent

We investigate the dynamics of Brownian particles in internal state- dependent symmetric and periodic potentials. Although no space or time symmetry of the Hamiltonian is broken, we show that...

Non-Gaussian Velocity Distributions in Optical Lattices (2004)

Jersblad, Johan, Ellmann, Harald, Stöchkel, Kristian, Kastberg, Anders, Sanchez-Palencia, Laurent, Kaiser, Robin

We present a detailed experimental study of the velocity distribution of atoms cooled in an optical lattice. Our results are supported by full-quantum numerical simulations. Even though the Sisyphus...

Non-Gaussian Velocity Distributions in Optical Lattices (2004)

Jersblad, Johan, Ellmann, Harald, Stöchkel, Kristian, Kastberg, Anders, Sanchez-Palencia, Laurent, Kaiser, Robin

We present a detailed experimental study of the velocity distribution of atoms cooled in an optical lattice. Our results are supported by full-quantum numerical simulations. Even though the Sisyphus...

Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From Fermi glass to quantum spin glass and quantum percolation (2004)

Sanpera, Anna, Kantian, Adrian, Sanchez-Palencia, Laurent, Zakrzewski, Jakub, Lewenstein, Maciej

We investigate atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices in the limit of strong atom-atom interactions. We derive the effective Hamiltonian describing the dynamics of...

Directed transport of Brownian particles in a double symmetric potential (2004)

Sanchez-Palencia, Laurent

We investigate the dynamics of Brownian particles in internal state- dependent symmetric and periodic potentials. Although no space or time symmetry of the Hamiltonian is broken, we show that...

Non-Gaussian Velocity Distributions in Optical Lattices (2004)

Jersblad, Johan, Ellmann, Harald, Stöchkel, Kristian, Kastberg, Anders, Sanchez-Palencia, Laurent, Kaiser, Robin

We present a detailed experimental study of the velocity distribution of atoms cooled in an optical lattice. Our results are supported by full-quantum numerical simulations. Even though the Sisyphus...

Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From Fermi glass to quantum spin glass and quantum percolation (2004)

Sanpera, Anna, Kantian, Adrian, Sanchez-Palencia, Laurent, Zakrzewski, Jakub, Lewenstein, Maciej

We investigate atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices in the limit of strong atom-atom interactions. We derive the effective Hamiltonian describing the dynamics of...

Directed transport of Brownian particles in a double symmetric potential (2004)

Sanchez-Palencia, Laurent

We investigate the dynamics of Brownian particles in internal state- dependent symmetric and periodic potentials. Although no space or time symmetry of the Hamiltonian is broken, we show that...

Non-Gaussian Velocity Distributions in Optical Lattices (2004)

Jersblad, Johan, Ellmann, Harald, Stöchkel, Kristian, Kastberg, Anders, Sanchez-Palencia, Laurent, Kaiser, Robin

We present a detailed experimental study of the velocity distribution of atoms cooled in an optical lattice. Our results are supported by full-quantum numerical simulations. Even though the Sisyphus...

Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From Fermi glass to quantum spin glass and quantum percolation (2004)

Sanpera, Anna, Kantian, Adrian, Sanchez-Palencia, Laurent, Zakrzewski, Jakub, Lewenstein, Maciej

We investigate atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices in the limit of strong atom-atom interactions. We derive the effective Hamiltonian describing the dynamics of...

Directed transport of Brownian particles in a double symmetric potential (2004)

Sanchez-Palencia, Laurent

We investigate the dynamics of Brownian particles in internal state- dependent symmetric and periodic potentials. Although no space or time symmetry of the Hamiltonian is broken, we show that...

Phase-control of directed diffusion in a symmetric optical lattice (2003)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We demonstrate the phenomenon of directed diffusion in a symmetric periodic potential. This has been realized with cold atoms in a one-dimensional dissipative optical lattice. The stochastic process...

Damping rates of the atomic velocity in Sisyphus cooling (2003)

Sanchez-Palencia, Laurent, Schiavoni, Michele, Carminati, Francois-Regis, Renzoni, Ferruccio, Grynberg, Gilbert

We present a theoretical and experimental study of the damping process of the atomic velocity in Sisyphus cooling. The relaxation rates of the atomic kinetic temperature are determined for a 3D...

Synchronization of Hamiltonian motion and dissipative effects in optical lattices: Evidence for a stochastic resonance (2003)

Sanchez-Palencia, Laurent, Grynberg, Gilbert

We theoretically study the influence of the noise strength on the excitation of the Brillouin propagation modes in a dissipative optical lattice. We show that the excitation has a resonant behavior...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

Non-Gaussian Velocity Distributions in Optical Lattices (2003)

Jersblad, Johan, Ellmann, Harald, Stöchkel, Kristian, Kastberg, Anders, Sanchez-Palencia, Laurent, Kaiser, Robin

We present a detailed experimental study of the velocity distributionof atoms cooled in an optical lattice. Our results are supported byfull-quantum numerical simulations. Even though the Sisyphus...

Non-Gaussian Velocity Distributions in Optical Lattices (2003)

Jersblad, Johan, Ellmann, Harald, Stöchkel, Kristian, Kastberg, Anders, Sanchez-Palencia, Laurent, Kaiser, Robin

We present a detailed experimental study of the velocity distribution of atoms cooled in an optical lattice. Our results are supported by full-quantum numerical simulations. Even though the Sisyphus...

Rayleigh Scattering and Atomic Dynamics in Dissipative Optical Lattices (2003)

Carminati, Francois-Regis, Sanchez-Palencia, Laurent, Schiavoni, Michele, Renzoni, Ferruccio, Grynberg, Gilbert

We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals (S. Guibal {\it et al}, Phys. Rev. Lett. {\bf 78}, 4709 (1997); C. Jurczak {\it et al},...

Anisotropic velocity distributions in 3D dissipative optical lattices (2003)

Jersblad, Johan, Ellmann, Harald, Sanchez-Palencia, Laurent, Kastberg, Anders

We present a direct measurement of velocity distributions in two dimensions by using an absorption imaging technique in a 3D near resonant optical lattice. The results show a clear difference in the...

Synchronization of Hamiltonian motion and dissipative effects in optical lattices: Evidence for a stochastic resonance (2003)

Sanchez-Palencia, Laurent, Grynberg, Gilbert

We theoretically study the influence of the noise strength on the excitation of the Brillouin propagation modes in a dissipative optical lattice. We show thatthe excitation has a resonant behavior...

Damping rates of the atomic velocity in Sisyphus cooling (2003)

Sanchez-Palencia, Laurent, Schiavoni, Michele, Carminati, François-Régis, Renzoni, Ferruccio, Grynberg, Gilbert

We present a theoretical and experimental study of the damping process ofthe atomic velocity in Sisyphus cooling. The relaxation rates of the atomickinetic temperature are determined for a 3D...

Phase-control of directed diffusion in a symmetric optical lattice (2003)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We demonstrate the phenomenon of directed diffusion in a symmetric periodicpotential. This has been realized with cold atoms in a one-dimensionaldissipative optical lattice. The stochastic process of...

Rayleigh Scattering and Atomic Dynamics in Dissipative Optical Lattices (2003)

Carminati, François-Régis, Sanchez-Palencia, Laurent, Schiavoni, Michele, Renzoni, Ferruccio, Grynberg, Gilbert

We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals (S.~Guibal {\it et al}, Phys. Rev. Lett. {\bf 78}, 4709 (1997); C.~Jurczak {\it et al},...

Anisotropic velocity distributions in 3D dissipative optical lattices (2003)

Jersblad, Johan, Ellmann, Harald, Sanchez-Palencia, Laurent, Kastberg, Anders

We present a direct measurement of velocity distributions in two dimensions by using an absorption imaging technique in a 3D near resonant optical lattice. The results show a clear difference in the...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

Synchronization of Hamiltonian motion and dissipative effects in optical lattices: Evidence for a stochastic resonance (2003)

Sanchez-Palencia, Laurent, Grynberg, Gilbert

We theoretically study the influence of the noise strength on the excitation of the Brillouin propagation modes in a dissipative optical lattice. We show thatthe excitation has a resonant behavior...

Damping rates of the atomic velocity in Sisyphus cooling (2003)

Sanchez-Palencia, Laurent, Schiavoni, Michele, Carminati, François-Régis, Renzoni, Ferruccio, Grynberg, Gilbert

We present a theoretical and experimental study of the damping process ofthe atomic velocity in Sisyphus cooling. The relaxation rates of the atomickinetic temperature are determined for a 3D...

Phase-control of directed diffusion in a symmetric optical lattice (2003)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We demonstrate the phenomenon of directed diffusion in a symmetric periodicpotential. This has been realized with cold atoms in a one-dimensionaldissipative optical lattice. The stochastic process of...

Rayleigh Scattering and Atomic Dynamics in Dissipative Optical Lattices (2003)

Carminati, François-Régis, Sanchez-Palencia, Laurent, Schiavoni, Michele, Renzoni, Ferruccio, Grynberg, Gilbert

We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals (S.~Guibal {\it et al}, Phys. Rev. Lett. {\bf 78}, 4709 (1997); C.~Jurczak {\it et al},...

Anisotropic velocity distributions in 3D dissipative optical lattices (2003)

Jersblad, Johan, Ellmann, Harald, Sanchez-Palencia, Laurent, Kastberg, Anders

We present a direct measurement of velocity distributions in two dimensions by using an absorption imaging technique in a 3D near resonant optical lattice. The results show a clear difference in the...

Synchronization of Hamiltonian motion and dissipative effects in optical lattices: Evidence for a stochastic resonance (2003)

Sanchez-Palencia, Laurent, Grynberg, Gilbert

We theoretically study the influence of the noise strength on the excitation of the Brillouin propagation modes in a dissipative optical lattice. We show thatthe excitation has a resonant behavior...

Damping rates of the atomic velocity in Sisyphus cooling (2003)

Sanchez-Palencia, Laurent, Schiavoni, Michele, Carminati, François-Régis, Renzoni, Ferruccio, Grynberg, Gilbert

We present a theoretical and experimental study of the damping process ofthe atomic velocity in Sisyphus cooling. The relaxation rates of the atomickinetic temperature are determined for a 3D...

Phase-control of directed diffusion in a symmetric optical lattice (2003)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We demonstrate the phenomenon of directed diffusion in a symmetric periodicpotential. This has been realized with cold atoms in a one-dimensionaldissipative optical lattice. The stochastic process of...

Rayleigh Scattering and Atomic Dynamics in Dissipative Optical Lattices (2003)

Carminati, François-Régis, Sanchez-Palencia, Laurent, Schiavoni, Michele, Renzoni, Ferruccio, Grynberg, Gilbert

We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals (S.~Guibal {\it et al}, Phys. Rev. Lett. {\bf 78}, 4709 (1997); C.~Jurczak {\it et al},...

Anisotropic velocity distributions in 3D dissipative optical lattices (2003)

Jersblad, Johan, Ellmann, Harald, Sanchez-Palencia, Laurent, Kastberg, Anders

We present a direct measurement of velocity distributions in two dimensions by using an absorption imaging technique in a 3D near resonant optical lattice. The results show a clear difference in the...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

ETUDE THEORIQUE DE LA DYNAMIQUE NON LINEAIRE D'ATOMES FROIDS DANS UN RESEAU OPTIQUE DISSIPATIF : TRANSPORT SPONTANE ET TRANSPORT STIMULE (2003)

SANCHEZ-PALENCIA, Laurent

Nous étudions théoriquement la dynamique non linéaire d'atomes refroidis et piégés dans un réseau optique dissipatif et plus particulièrement les phénomènes de transport spontané et...

Anisotropic velocity distributions in 3D dissipative optical lattices (2003)

Jersblad, Johan, Ellmann, Harald, Sanchez-Palencia, Laurent, Kastberg, Anders

We present a direct measurement of velocity distributions in two dimensions by using an absorption imaging technique in a 3D near resonant optical lattice. The results show a clear difference in the...

Rayleigh Scattering and Atomic Dynamics in Dissipative Optical Lattices (2003)

Carminati, François-Régis, Sanchez-Palencia, Laurent, Schiavoni, Michele, Renzoni, Ferruccio, Grynberg, Gilbert

We investigate Rayleigh scattering in dissipative optical lattices. In particular, following recent proposals (S.~Guibal {\it et al}, Phys. Rev. Lett. {\bf 78}, 4709 (1997); C.~Jurczak {\it et al},...

Synchronization of Hamiltonian motion and dissipative effects in optical lattices: Evidence for a stochastic resonance (2003)

Sanchez-Palencia, Laurent, Grynberg, Gilbert

We theoretically study the influence of the noise strength on the excitation of the Brillouin propagation modes in a dissipative optical lattice. We show thatthe excitation has a resonant behavior...

Damping rates of the atomic velocity in Sisyphus cooling (2003)

Sanchez-Palencia, Laurent, Schiavoni, Michele, Carminati, François-Régis, Renzoni, Ferruccio, Grynberg, Gilbert

We present a theoretical and experimental study of the damping process ofthe atomic velocity in Sisyphus cooling. The relaxation rates of the atomickinetic temperature are determined for a 3D...

Phase-control of directed diffusion in a symmetric optical lattice (2003)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We demonstrate the phenomenon of directed diffusion in a symmetric periodicpotential. This has been realized with cold atoms in a one-dimensionaldissipative optical lattice. The stochastic process of...

Stochastic resonance in periodic potentials: realization in a dissipative optical lattice (2002)

Schiavoni, Michele, Carminati, Francois-Regis, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We have observed the phenomenon of stochastic resonance on the Brillouin propagation modes of a dissipative optical lattice. Such a mode has been excited by applying a moving potential modulation...

Dark propagation modes in optical lattices (2002)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Carminati, Francois-Regis, Renzoni, Ferruccio, Grynberg, Gilbert

We examine the stimulated light scattering onto the propagation modes of a dissipative optical lattice. We show that two different pump-probe configurations may lead to the excitation, via different...

Dark propagation modes in optical lattices (2002)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Carminati, Francois-Regis, Renzoni, Ferruccio, Grynberg, Gilbert

We examine the stimulated light scattering onto the propagation modes of a dissipative optical lattice. We show that two different pump-probe configurations may lead to the excitation, via different...

Stochastic resonance in periodic potentials: realization in a dissipative optical lattice (2002)

Schiavoni, Michele, Carminati, Francois-Regis, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We have observed the phenomenon of stochastic resonance on the Brillouin propagation modes of a dissipative optical lattice. Such a mode has been excited by applying a moving potential modulation...

Time-reversal therahertz imaging (2002)

Ruffin, A. Boh, Van Rudd, John, Decker, Joan, Sanchez-Palencia, Laurent, Le Hors, Lenaic, Whitaker, John, ...

We describe a technique for imaging in the terahertz regime using time reversal of single-cycle pulses. Specifically, the time-reversal symmetry of Maxwell's wave equation is exploited to reconstruct...

Dark propagation modes in optical lattices (2002)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Carminati, Francois-Regis, Renzoni, Ferruccio, Grynberg, Gilbert

We examine the stimulated light scattering onto the propagation modes of a dissipative optical lattice. We show that two different pump-probe configurations may lead to the excitation, via different...

Stochastic resonance in periodic potentials: realization in a dissipative optical lattice (2002)

Schiavoni, Michele, Carminati, Francois-Regis, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We have observed the phenomenon of stochastic resonance on the Brillouin propagation modes of a dissipative optical lattice. Such a mode has been excited by applying a moving potential modulation...

Dark propagation modes in optical lattices (2002)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Carminati, Francois-Regis, Renzoni, Ferruccio, Grynberg, Gilbert

We examine the stimulated light scattering onto the propagation modes of a dissipative optical lattice. We show that two different pump-probe configurations may lead to the excitation, via different...

Stochastic resonance in periodic potentials: realization in a dissipative optical lattice (2002)

Schiavoni, Michele, Carminati, Francois-Regis, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We have observed the phenomenon of stochastic resonance on the Brillouin propagation modes of a dissipative optical lattice. Such a mode has been excited by applying a moving potential modulation...

Dark propagation modes in optical lattices (2002)

Schiavoni, Michele, Sanchez-Palencia, Laurent, Carminati, Francois-Regis, Renzoni, Ferruccio, Grynberg, Gilbert

We examine the stimulated light scattering onto the propagation modes of a dissipative optical lattice. We show that two different pump-probe configurations may lead to the excitation, via different...

Stochastic resonance in periodic potentials: realization in a dissipative optical lattice (2002)

Schiavoni, Michele, Carminati, Francois-Regis, Sanchez-Palencia, Laurent, Renzoni, Ferruccio, Grynberg, Gilbert

We have observed the phenomenon of stochastic resonance on the Brillouin propagation modes of a dissipative optical lattice. Such a mode has been excited by applying a moving potential modulation...

Spatial diffusion in a periodic optical lattice: revisiting the Sisyphus effect (2001)

Sanchez-Palencia, Laurent, Horak, Peter, Grynberg, Gilbert

We numerically study the spatial diffusion of an atomic cloud experiencing Sisyphus cooling in a three-dimensional lin$\bot$lin optical lattice in a broad range of lattice parameters. In particular,...

Time reversal and object reconstruction with single-cycle pulses (2001)

Ruffin, A. Boh, Decker, Joan, Sanchez-Palencia, Laurent, Le Hors, Lenaic, Whitaker, John, Norris, Theodore, ...

We demonstrate the reconstruction of one- and two-dimensional objects by numerically backpropagating measured scattered terahertz transients. The spatial resolution determined by the Sparrow...