Non-Gaussian statistics from individual pulses of squeezed light.
We describe the observation of a "degaussification" protocol that maps individual pulses of squeezed light onto non-Gaussian states. This effect is obtained by sending a small fraction of the squeezed vacuum beam onto an avalanche photodiode, and by conditioning the single-shot homodyne detection of the remaining state upon the photon-counting events. The experimental data provide clear evidence of phase-dependent non-Gaussian statistics. This protocol is closely related to the first step of an entanglement distillation procedure for continuous variables.
Wenger
Jérôme
J
Laboratoire Charles Fabry de l'Institut d'Optique, CNRS UMR 8501, F-91403 Orsay, France. jerome.wenger@iota.u-psud.fr
Tualle-Brouri
Rosa
R
Grangier
Philippe
P