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Quantum key distribution using gaussian-modulated coherent states
F. Grosshans, G. Van Assche, J. Wenger +3
Quantum continuous variables are being explored as an alternative means to implement quantum key distribution, which is usually based on single photon counting. The former approach…
Single photon quantum cryptography
Alexios Beveratos, Rosa Brouri, Thierry Gacoin +3
We report the full implementation of a quantum cryptography protocol using a stream of single photon pulses generated by a stable and efficient source operating at room temperature…
Room temperature stable single-photon source
Alexios Beveratos, Sergei Kuehn, Rosa Brouri +3
We report on the realization of a stable solid state room temperature source for single photons. It is based on the fluorescence of a single nitrogen-vacancy (NV) color center in a…
Nonclassical radiation from diamond nanocrystals
Alexios Beveratos, Rosa Brouri, Thierry Gacoin +2
The quantum properties of the fluorescence light emitted by diamond nanocrystals containing a single nitrogen-vacancy (NV) colored center is investigated. We have observed photon a…
Bunching and antibunching from single NV color centers in diamond
A. Beveratos, R. Brouri, J. -P. Poizat +1
We investigate correlations between fluorescence photons emitted by single N-V centers in diamond with respect to the optical excitation power. The autocorrelation function shows c…
Single photon generation by pulsed excitation of a single dipole
Rosa Brouri, Alexios Beveratos, Jean-Philippe Poizat +1
The fluorescence of a single dipole excited by an intense light pulse can lead to the generation of another light pulse containing a single photon. The influence of the duration an…