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- Centre National de la Recherche ScientifiqueFR526 papers
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- Laboratoire Photonique, Numérique et NanosciencesFR30 papers
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30 papers · 1 filter
Narrow-band single-photon emission in the near infrared for quantum key distribution
E. Wu, Vincent Jacques, Heping Zeng +3
We report on the observation of single colour centers in natural diamond samples emitting in the near infrared region when optically excited. Photoluminescence of these single emit…
Dynamics of a pulsed continuous variable quantum memory
Aurelien Dantan, Jean Cviklinski, Michel Pinard +1
We study the transfer dynamics of non-classical fluctuations of light to the ground-state collective spin components of an atomic ensemble during a pulsed quantum memory sequence,…
Controlling excess noise in fiber optics continuous variables quantum key distribution
Jérôme Lodewyck, Thierry Debuisschert, Rosa Tualle-Brouri +1
We describe a continuous variables coherent states quantum key distribution system working at 1550 nm, and entirely made of standard fiber optics and telecom components, such as in…
Demonstration of a controllable three-dimensional Brownian motor in symmetric potentials
Peder Sjolund, Stefan J. H. Petra, Claude M. Dion +4
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…
Tapered-amplified AR-coated laser diodes for Potassium and Rubidium atomic-physics experiments
Robert A. Nyman, Gael Varoquaux, Brice Villier +5
We present a system of room-temperature extended-cavity grating-diode lasers (ECDL) for production of light in the range 760-790nm. The extension of the tuning range towards the bl…
Observations of density fluctuations in an elongated Bose gas: ideal gas and quasi-condensate regimes
Jerome Esteve, Jean-Baptiste Trebbia, Thorsten Schumm +3
We report in situ measurements of density fluctuations in a quasi one dimensional Bose gas at thermal equilibrium in an elongated harmonic trap. We observe an excess of fluctuation…