Heim, Bettina, Elser, Dominique, Bartley, Tim, Sabuncu, Metin, Wittmann, Christoffer, Sych, Denis, ...
We investigate the properties of an atmospheric channel for free space quantum communication with continuous polarization variables. In our prepare-and-measure setup, coherent polarization states are...
Enhanced free space beam capture by improved optical tapers (2009)
Bartley, Tim, Heim, Bettina, Elser, Dominique, Sych, Denis, Sabuncu, Metin, Wittmann, Christoffer, ...
In our continuous variable quantum key distribution (QKD) scheme, the homodyne detection set-up requires balancing the intensity of an incident beam between two photodiodes. Realistic lens systems...
Geometric Spin Hall Effect of Light (2009)
Aiello, Andrea, Marquardt, Christoph, Leuchs, Gerd
We describe a novel phenomenon occurring when a polarized Gaussian beam of light is observed in a Cartesian reference frame whose axes are not parallel to the direction of propagation of the beam....
Experimental entanglement distillation of mesoscopic quantum states (2008)
Dong, Ruifang, Lassen, Mikael, Heersink, Joel, Marquardt, Christoph, Filip, Radim, Leuchs, Gerd, ...
The distribution of entangled states between distant parties in an optical network is crucial for the successful implementation of various quantum communication protocols such as quantum...
Experimental Demonstration of Macroscopic Quantum Coherence in Gaussian States (2007)
Marquardt, Christoph, Andersen, Ulrik L., Leuchs, Gerd, Takeno, Yuishi, Yukawa, Mitsuyoshi, Yonezawa, Hidehiro, ...
We witness experimentally the presence of macroscopic coherence in Gaussian quantum states using a recently proposed criterion (E.G. Cavalcanti and M. Reid, Phys. Rev. Lett. 97, 170405 (2006)). The...
All-fibre source of amplitude-squeezed light pulses (2004)
Meissner, Markus, Marquardt, Christoph, Heersink, Joel, Gaber, Tobias, Wietfeld, André, Leuchs, Gerd, ...
An all-fibre source of amplitude squeezed solitons utilizing the self-phase modulation in an asymmetric Sagnac interferometer is experimentally demonstrated. The asymmetry of the interferometer is...
Glöckl, Oliver, Lorenz, Stefan, Marquardt, Christoph, Heersink, Joel, Brownnutt, Michel, Silberhorn, Christine, ...
We present a protocol for performing entanglement swapping with intense pulsed beams. In a first step, the generation of amplitude correlations between two systems that have never interacted directly...
Mit einer speziellen Apparatur wurden bei 5 Patienten vor einer Hüft-TEP-Implantation definierte Spannungen von 0 - 278 kN/m² in die lateralen Inzisionswunden am Oberschenkel eingeleitet. Neben der...
Mit einer speziellen Apparatur wurden bei 5 Patienten vor einer Hüft-TEP-Implantation definierte Spannungen von 0 - 278 kN/m² in die lateralen Inzisionswunden am Oberschenkel eingeleitet. Neben der...