Nonclassicality of quantum excitation of classical coherent field in photon loss channel

Details Nonclassicality of quantum excitation of classical coherent field in photon loss channel Nonclassicality of quantum excitation of classical coherent field in photon loss channel

2007-01-05

arxiv.org/abs/quant-ph/0701021v1

Phys. Rev. A 75, 045801 (2007)

Physics

Quantum Physics

5 pages, 5 figures, RevTex4, submitted

Scientific paper

10.1103/PhysRevA.75.045801

We investigate the nonclassicality of photon-added coherent states in the photon loss channel by exploring the entanglement potential and negative Wigner distribution. The total negative probability defined by the absolute value of the integral of the Wigner function over the negative distribution region reduces with the increase of decay time. The total negative probability and the entanglement potential of pure photon-added coherent states exhibit the similar dependence on the beam intensity. The reduce of the total negative probability is consistent with the behavior of entanglement potential for the dissipative single-photon-added coherent state at short decay times.

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