Entanglement and squeezing in continuous-variable systems

Anno: 2017

Autori: Gessner M., Pezzè L., Smerzi A.

Affiliazione autori: INO CNR, QSTAR, Largo Enrico Fermi 2, I-50125 Florence, Italy; LENS, Largo Enrico Fermi 2, I-50125 Florence, Italy

Abstract: We introduce a multi-mode squeezing coefficient to characterize entanglement in N-partite continuous-variable systems. The coefficient relates to the squeezing of collective observables in the 2N-dimensional phase space and can be readily extracted from the covariance matrix. Simple extensions further permit to reveal entanglement within specific partitions of a multipartite system. Applications with nonlinear observables allow for the detection of non-Gaussian entanglement.

Giornale/Rivista: QUANTUM

Volume: 1      Da Pagina: 17-1  A: 17-11

Parole chiavi: HYBRID ENTANGLEMENT; QUANTUM; CRITERION; DYNAMICS; INFORMATION; GENERATION
DOI: 10.22331/q-2017-07-14-17

Citazioni: 14
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-14
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