We investigate the quantum features, entanglement and resilience to losses, of multiphoton fields generated by optical amplification of photon entangled states. We first report the realization of a class of Microscopic-Macroscopic entangled states of more than 5 x 10(4) photons, based on parametric amplification of single-photon and two-photons states. A non-locality CHSH-type test has been performed on this system. Then, we apply a decoherence model to this Micro-Macroscopic entangled state, showing their high resilience to photon-loss. The theoretical results are in full agreement with many experimental observations.
Entanglement and Decoherence in a Microscopic-Macroscopic system / Spagnolo, Nicolo'; Vitelli, Chiara; Sciarrino, Fabio; Francesco De, Martini; Alexander, Lvovsky. - 1110:(2009), pp. 211-216. (Intervento presentato al convegno 9th International Conference on Quantum Communication, Measurement, and Computing tenutosi a Calgary, CANADA) [10.1063/1.3131309].
Entanglement and Decoherence in a Microscopic-Macroscopic system
SPAGNOLO, NICOLO';VITELLI, Chiara;SCIARRINO, Fabio;
2009
Abstract
We investigate the quantum features, entanglement and resilience to losses, of multiphoton fields generated by optical amplification of photon entangled states. We first report the realization of a class of Microscopic-Macroscopic entangled states of more than 5 x 10(4) photons, based on parametric amplification of single-photon and two-photons states. A non-locality CHSH-type test has been performed on this system. Then, we apply a decoherence model to this Micro-Macroscopic entangled state, showing their high resilience to photon-loss. The theoretical results are in full agreement with many experimental observations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
