Nonclassicality of coherent states: Entanglement of joint statistics
arXiv:1707.09318 · doi:10.1103/PhysRevA.96.063802
Abstract
Simple joint measurements of pairs of observables reveal that states considered universally as classical-like, such as SU(2) spin coherent states, Glauber coherent states, and thermal states are actually nonclassical. We show that this holds because we can find a joint measurement the statistics of which is not separable. Eventually this may be extended to all states different from the maximally mixed state.
arXiv comment8 pages, 2 figures
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