580 citations
- Ørsted (Denmark)DK17 papers
- Helsinki Institute of PhysicsFI15 papers
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- Max Planck Institute for the Science of LightDE13 papers
- Centre National de la Recherche ScientifiqueFR9 papers
- Charles UniversityCZ8 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR8 papers
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- Paul Scherrer InstituteCH6 papers
5 papers · 2 filters
Experimentally feasible quantum erasure-correcting code for continuous variables
J. Niset, U. L. Andersen, N. J. Cerf
We devise a scheme that protects quantum coherent states of light from probabilistic losses, thus achieving the first continuous-variable quantum erasure-correcting code. If the oc…
Quantum Filtering of Optical Coherent States
C. Wittmann, D. Elser, U. L. Andersen +3
We propose and experimentally demonstrate non-destructive and noiseless removal (filtering) of vacuum states from an arbitrary set of coherent states of continuous variable systems…
Experimental Demonstration of Macroscopic Quantum Coherence in Gaussian States
Christoph Marquardt, Ulrik L. Andersen, Gerd Leuchs +4
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, 17…
Demonstration of deterministic and high fidelity squeezing of quantum information
Jun-ichi Yoshikawa, Toshiki Hayashi, Takayuki Akiyama +4
By employing at recent proposal (R. Filip, P. Marek and U.L. Andersen, Phys. Rev. A {\bf 71}, 042308 (2005) \cite{Filip05.pra}), we experimentally demonstrate a universal, determin…
Quantum reconstruction of an intense polarization squeezed optical state
Ch. Marquardt, J. Heersink, R. Dong +5
We perform a reconstruction of the polarization sector of the density matrix of an intense polarization squeezed beam starting from a complete set of Stokes measurements. By using…