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Entanglement and squeezing in continuous-variable systems
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DOI：10.22331/q-2017-07-14-17.png)
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摘要
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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.
Keyword:
HYBRID ENTANGLEMENT
QUANTUM
CRITERION
DYNAMICS
INFORMATION
GENERATION
期刊
IF:
5.4
论文数:
974
被引数:
1.0W
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