Coherent Mott Excitations Captured on the Timescale of Electron Correlations (2009)
Wall, S., Brida, D., Clark, S. R., Ehrke, H. P., Jaksch, D., Ardavan, A., ...
By using nearly-single-cycle optical pulses in the near infrared, we measure the time-dependent optical properties of the Mott insulator ET-F2TCNQ after prompt photo-excitation. We observe a rapid...
Exact matrix product solutions in the Heisenberg picture of an open quantum spin chain (2009)
Clark, S. R., Prior, J., Hartmann, M. J., Jaksch, D., Plenio, M. B.
In recent work Hartmann et al [Phys. Rev. Lett. 102, 057202 (2009)] demonstrated that the classical simulation of the dynamics of open 1D quantum systems with matrix product algorithms can often be...
Entanglement Percolation with Bipartite Mixed States (2009)
Broadfoot, S., Dorner, U., Jaksch, D.
We develop a concept of entanglement percolation for long-distance singlet generation in quantum networks with neighboring nodes connected by partially entangled bipartite mixed states. We give a...
Ultra-large Rydberg dimers in optical lattices (2008)
Vaucher, B., Thwaite, S. J., Jaksch, D.
We investigate the dynamics of Rydberg electrons excited from the ground state of ultracold atoms trapped in an optical lattice. We first consider a lattice comprising an array of double-well...
Multimode Memories in Atomic Ensembles (2008)
Nunn, J., Reim, K., Lee, K. C., Lorenz, V. O., Sussman, B., Walmsley, I. A., ...
The ability to store multiple optical modes in a quantum memory allows for increased efficiency of quantum communication and computation. Here we compute the multimode capacity of a variety of...
Decoherence measurement of single phonons using spectral interference (2008)
Waldermann, F. C., Sussman, B. J., Nunn, J., Lorenz, V. O., Lee, K. C., Surmacz, K., ...
A technique to measure the decoherence time of optical phonons in a solid is presented. Phonons are excited with a pair of time delayed 80 fs, near infrared pulses via spontaneous, transient Raman...
Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices (2008)
Rosenkranz, M., Jaksch, D., Lim, F. Y., Bao, W.
We observe a sudden breakdown of the transport of a strongly repulsive Bose-Einstein condensate through a shallow optical lattice of finite width. We are able to attribute this behavior to the...
Bruderer, M., Bao, W., Jaksch, D.
We study the interaction-induced localization -- the so-called self-trapping -- of a neutral impurity atom immersed in a homogeneous Bose-Einstein condensate (BEC). Based on a Hartree description of...
Adiabatic melting of two-component Mott-insulator states (2008)
Rodriguez, M., Clark, S. R., Jaksch, D.
We analyze the outcome of a Mott insulator to superfluid transition for a two-component Bose gas with two atoms per site in an optical lattice in the limit of slow ramping down the lattice potential....
Growth of the Bose Einstein Condensate (2007)
C.W. Gardiner, M.D. Lee, P. Zöller, D. Jaksch, R.J. Ballagh, Snoke Wolfe, ...
This paper will present a quantitative description of the growth process, based on quantum kinetic theory, which can be simplified to a single first order differential equation for the number N of...
Creating diamond color centers for quantum optical applications (2007)
Waldermann, F. C., Olivero, P., Nunn, J., Surmacz, K., Wang, Z. Y., Jaksch, D., ...
Nitrogen vacancy (NV) centers in diamond have distinct promise as solid-state qubits. This is because of their large dipole moment, convenient level structure and very long room-temperature coherence...
Efficient spatially-resolved multimode quantum memory (2007)
Surmacz, K., Nunn, J., Waldermann, F. C., Lee, K. C., Wang, Z., Walmsley, I. A., ...
We propose a method that enables efficient storage and retrieval of a photonic excitation stored in an ensemble quantum memory consisting of Lambda-type absorbers with non-zero Stokes shift. We show...
Vaucher, B., Nunnenkamp, A., Jaksch, D.
We investigate how to create entangled states of ultracold atoms trapped in optical lattices by dynamically manipulating the shape of the lattice potential. We consider an additional potential (the...
Transport of strong-coupling polarons in optical lattices (2007)
Bruderer, M., Klein, A., Clark, S. R., Jaksch, D.
We study the transport of ultracold impurity atoms immersed in a Bose-Einstein condensate (BEC) and trapped in a tight optical lattice. Within the strong-coupling regime, we derive an extended...
Graph state generation with noisy mirror-inverting spin chains (2007)
Clark, S. R., Klein, A., Bruderer, M., Jaksch, D.
We investigate the influence of noise on a graph state generation scheme which exploits a mirror inverting spin chain. Within this scheme the spin chain is used repeatedly as an entanglement bus (EB)...
Fast initialization of a high-fidelity quantum register using optical superlattices (2007)
Vaucher, B., Clark, S. R., Dorner, U., Jaksch, D.
We propose a method for the fast generation of a quantum register of addressable qubits consisting of ultracold atoms stored in an optical lattice. Starting with a half filled lattice we remove every...
Mapping broadband single-photon wavepackets into an atomic memory (2007)
Nunn, J., Walmsley, I. A., Raymer, M. G., Surmacz, K., Waldermann, F. C., Wang, Z., ...
We analyze a quantum optical memory based on the off-resonant Raman interaction of a single broadband photon, copropagating with a classical control pulse, with an atomic ensemble. The conditions...
Griessner, A., Daley, A. J., Clark, S. R., Jaksch, D., Zoller, P.
We analyse a laser assisted sympathetic cooling scheme for atoms within the lowest Bloch band of an optical lattice. This scheme borrows ideas from sub-recoil laser cooling, implementing them in a...
Entanglement fidelity of quantum memories (2006)
Surmacz, K., Nunn, J., Waldermann, F. C., Wang, Z., Walmsley, I., Jaksch, D.
We introduce a figure of merit for a quantum memory which measures the preservation of entanglement between a qubit stored in and retrieved from the memory and an auxiliary qubit. We consider a...
Rodríguez, M., Clark, S. R., Jaksch, D.
We propose the dynamical creation of twin Fock states, which exhibit Heisenberg limited interferometric phase sensitivities, in an optical lattice. In our scheme a two-component Mott insulator with...
Dark state cooling of atoms by superfluid immersion (2006)
Griessner, A., Daley, A. J., Clark, S. R., Jaksch, D., Zoller, P.
We propose and analyse a scheme to cool atoms in an optical lattice to ultra-low temperatures within a Bloch band, and away from commensurate filling. The protocol is inspired by ideas from dark...
We present a detailed analysis of the dynamical response of ultra-cold bosonic atoms in a one-dimensional optical lattice subjected to a periodic modulation of the lattice depth. Following the...
High field fractional quantum Hall effect in optical lattices (2006)
We consider interacting bosonic atoms in an optical lattice subject to a large simulated magnetic field. We develop a model similar to a bilayer fractional quantum Hall system valid near simple...
Modematching an optical quantum memory (2006)
Nunn, J, Walmsley, I A, Raymer, M G, Surmacz, K, Waldermann, F C, Wang, Z, ...
We analyse the off-resonant Raman interaction of a single broadband photon, copropagating with a classical `control' pulse, with an atomic ensemble. It is shown that the classical electrodynamical...
Probing BEC phase fluctuations with atomic quantum dots (2006)
We consider the dephasing of two internal states |0> and |1> of a trapped impurity atom, a so-called atomic quantum dot (AQD), where only state |1> couples to a Bose-Einstein condensate (BEC). A...
Fragmentation of transient water anions following low-energy electron capture by H2O/D2O (2006)
Fedor, J., Cicman, P., Coupier, B., Feil, S., Winkler, M., Gluch, K., ...
Dissociative electron attachment (DEA) to water in the gaseous phase has been studied using two different crossed electron–molecule beam apparatus. Ion yields for the formation of the three...
Numerical Analysis of Coherent Many-Body Currents in a Single Atom Transistor (2005)
Daley, A. J., Clark, S. R., Jaksch, D., Zoller, P.
We study the dynamics of many atoms in the recently proposed Single Atom Transistor setup [A. Micheli, A. J. Daley, D. Jaksch, and P. Zoller, Phys. Rev. Lett. 93, 140408 (2004)] using recently...
Detection and characterization of multipartite entanglement in optical lattices (2005)
Palmer, R. N., Alves, C. Moura, Jaksch, D.
We investigate the detection and characterization of entanglement based on the quantum network introduced in [Phys. Rev. Lett. 93, 110501 (2004)] for different experimental scenarios. We first give a...
Fault-Tolerant Dissipative Preparation of Atomic Quantum Registers with Fermions (2005)
Griessner, A., Daley, A. J., Jaksch, D., Zoller, P.
We propose a fault tolerant loading scheme to produce an array of fermions in an optical lattice of the high fidelity required for applications in quantum information processing and the modelling of...
The cold atom Hubbard toolbox (2004)
We review recent theoretical advances in cold atom physics concentrating on strongly correlated cold atoms in optical lattices. We discuss recently developed quantum optical tools for manipulating...
Multipartite entanglement detection in bosons (2004)
We propose a simple quantum network to detect multipartite entangled states of bosons, and show how to implement this network for neutral atoms stored in an optical lattice. We investigate the...
Optical Lattices, Ultracold Atoms and Quantum Information Processing (2004)
We review novel methods to investigate, control and manipulate neutral atoms in optical lattices. These setups allow unprecedented quantum control over large numbers of atoms and thus are very...
Efficient generation of graph states for quantum computation (2004)
Clark, S. R., Alves, C. Moura, Jaksch, D.
We present an entanglement generation scheme which allows arbitrary graph states to be efficiently created in a linear quantum register via an auxiliary entangling bus. The dynamics of the entangling...
A Single Atom Transistor in a 1D Optical Lattice (2004)
Micheli, A., Daley, A. J., Jaksch, D., Zoller, P.
We propose a scheme utilising a quantum interference phenomenon to switch the transport of atoms in a 1D optical lattice through a site containing an impurity atom. The impurity represents a qubit...
Dynamics of the superfluid to Mott insulator transition in one dimension (2004)
We numerically study the superfluid to Mott insulator transition for bosonic atoms in a one dimensional lattice by exploiting a recently developed simulation method for strongly correlated systems....
Cavity Assisted Nondestructive Laser Cooling of Atomic Qubits (2003)
Griessner, A., Jaksch, D., Zoller, P.
We analyze two configurations for laser cooling of neutral atoms whose internal states store qubits. The atoms are trapped in an optical lattice which is placed inside a cavity. We show that the...
Three Dimensional Simulation of Jet Formation in Collapsing Condensates (2003)
Bao, Weizhu, Jaksch, D., Markowich, P. A.
We numerically study the behavior of collapsing and exploding condensates using the parameters of the experiments by E.A. Donley et al. [Nature, 412, 295, (2001)]. Our studies are based on a full...
We investigate the dynamics of neutral atoms in a 2D optical lattice which traps two distinct internal states of the atoms in different columns. Two Raman lasers are used to coherently transfer atoms...
Entangling strings of neutral atoms in 1D atomic pipeline structures (2002)
Dorner, U., Fedichev, P., Jaksch, D., Lewenstein, M., Zoller, P.
We study a string of neutral atoms with nearest neighbor interaction in a 1D beam splitter configuration, where the longitudinal motion is controlled by a moving optical lattice potential. The...
Controlling dynamical phases in quantum optics (2002)
Calarco,T, Jaksch,D, Cirac,JI, Zoller,P
We review and compare several schemes for inducing precisely controlled quantum phases in quantum optical systems, We focus in particular on conditional dynamical phases, i.e. phases obtained via...
Creation of a molecular condensate by dynamically melting a Mott insulator (2002)
Jaksch,D., Venturi,V., Cirac,J. Ignacio, Williams,C. J., Zoller,P.
We propose the creation of a molecular Bose-Einstein condensate by loading an atomic condensate into an optical lattice and driving it into a Mott insulator with exactly two atoms per site. Molecules...
Many particle entanglement in two-component Bose-Einstein Condensates (2002)
Micheli, A., Jaksch, D., Cirac, J. I., Zoller, P.
We investigate schemes to dynamically create many particle entangled states of a two component Bose-Einstein condensate in a very short time proportional to 1/N where $N$ is the number of condensate...
Creation of a molecular condensate by dynamically melting a Mott-insulator (2002)
Jaksch, D., Venturi, V., Cirac, J. I., Williams, C. J., Zoller, P.
We propose creation of a molecular Bose-Einstein condensate (BEC) by loading an atomic BEC into an optical lattice and driving it into a Mott insulator (MI) with exactly two atoms per site. Molecules...
Dynamically turning off interactions in a two-component condensate (2002)
Jaksch,D., Cirac,J. Ignacio, Zoller,P.
We propose a mechanism to change the interaction strengths of a two-component condensate. It is shown that the application of π/2 pulses allows us to alter the effective interspecies-interaction...
Controlling dynamical phases in quantum optics (2002)
Calarco, T, Jaksch, D, Cirac, JI, Zoller, P
We review and compare several schemes for inducing precisely controlled quantum phases in quantum optical systems, We focus in particular on conditional dynamical phases, i.e. phases obtained via...
Creation of a molecular condensate by dynamically melting a Mott insulator (2002)
Jaksch, D., Venturi, V., Cirac, J. Ignacio, Williams, C. J., Zoller, P.
We propose the creation of a molecular Bose-Einstein condensate by loading an atomic condensate into an optical lattice and driving it into a Mott insulator with exactly two atoms per site. Molecules...
Dynamically turning off interactions in a two-component condensate (2002)
Jaksch, D., Cirac, J. Ignacio, Zoller, P.
We propose a mechanism to change the interaction strengths of a two-component condensate. It is shown that the application of π/2 pulses allows us to alter the effective interspecies-interaction...
Dynamically turning off interactions in a two component condensate (2001)
Jaksch, D., Cirac, J. I., Zoller, P.
We propose a mechanism to change the interaction strengths of a two component condensate. It is shown that the application of pi/2 pulses allows to alter the effective interspecies interaction...
Dipole blockade and quantum information processing in mesoscopic atomic ensembles (2001)
Lukin, MD, Fleischhauer, M, Côte, Renaud; U0051201, Duan, LM, Jaksch, D, Cirac, JI, ...
We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with strong...
Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles (2001)
Lukin, M.D., Fleischhauer, M., Cote, R., Duan, L.M., Jaksch, D., Cirac, J.I., ...
Abstract: We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with...
Uniting Bose-Einstein condensates in optical resonators (2001)
Jaksch, D., Gardiner, S. A., Schulze, K., Cirac, J. I., Zoller, P.
The relative phase of two initially independent Bose-Einstein condensates can be laser cooled to unite the two condensates by putting them into a ring cavity and coupling them with an internal...
Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles (2001)
Cote, R., Duan, L. M., Fleischhauer, M., Jaksch, D., Lukin, M. D.
Uniting Bose-Einstein Condensates in Optical Resonators (2001)
Cirac, J. I., Gardiner, S. A., Jaksch, D., Schulze, K., Zoller, P.
Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles (2000)
Lukin, M. D., Fleischhauer, M., Cote, R., Duan, L. M., Jaksch, D., Cirac, J. I., ...
We describe a technique for manipulating quantum information stored in collective states of mesoscopic ensembles. Quantum processing is accomplished by optical excitation into states with strong...
Fast quantum gates for neutral atoms (2000)
Jaksch, D, Cirac, JI, Zoller, P, Rolston, SL, Côte, Renaud; U0051201, Lukin, MD
We propose several schemes fur implementing a fast two-qubit quantum gate Fur neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the...
Fast quantum gates for neutral atoms (2000)
Jaksch, D., Cirac, J. I., Zoller, P., Rolston, S. L., Cote, R., Lukin, M. D.
We propose several schemes for implementing a fast two-qubit quantum gate for neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the...
Nonlinear Matter Wave Dynamics with a Chaotic Potential (1999)
Gardiner, S. A., Jaksch, D., Dum, R., Cirac, J. I., Zoller, P.
We consider the case of a cubic nonlinear Schr\"{o}dinger equation with an additional chaotic potential, in the sense that such a potential produces chaotic dynamics in classical mechanics. We derive...
Calarco, T., Hinds, E. A., Jaksch, D., Schmiedmayer, J., Cirac, J. I., Zoller, P.
We theoretically study specific schemes for performing a fundamental two-qubit quantum gate via controlled atomic collisions by switching microscopic potentials. In particular we calculate the...
Quantum computing with neutral atoms (1999)
Calarco, T., Jaksch, D., Cirac, J. I., Zoller, P.
We develop a method to entangle neutral atoms using cold controlled collisions. We analyze this method in two particular set-ups: optical lattices and magnetic micro-traps. Both offer the possibility...
Entanglement of atoms via cold controlled collisions (1998)
Jaksch, D., Cirac, J. I., Gardiner, C. W., Zoller, P.
We show that by using cold controlled collisions between two atoms one can achieve conditional dynamics in moving trap potentials. We discuss implementing two qubit quantum--gates and efficient...
Cold bosonic atoms in optical lattices (1998)
Jaksch, D., Bruder, C., Cirac, J. I., Gardiner, C. W., Zoller, P.
The dynamics of an ultracold dilute gas of bosonic atoms in an optical lattice can be described by a Bose-Hubbard model where the system parameters are controlled by laser light. We study the...
Jaksch, D., Gardiner, C. W., Gheri, K. M., Zoller, P.
We use the quantum kinetic theory to calculate the steady state and the fluctuations of a trapped Bose-Einstein condensate at finite temperature. The system is divided in a condensate and a...
Quantum Kinetic Theory III: Simulation of the Quantum Boltzmann Master Equation (1997)
Jaksch, D., Gardiner, C. W., Zoller, P.
We present results of simulations of a em quantum Boltzmann master equation (QBME) describing the kinetics of a dilute Bose gas confined in a trapping potential in the regime of Bose condensation....