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arXiv · 0907.4817

Photon--added squeezed thermal states: statistical properties and its decoherence in a photon-loss channel

Xue-xiang Xu·Li-yun Hu·Hong-yi Fan
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Abstract

Using the normally ordered Gaussian form of displaced-squeezed thermal field characteristic of average photon number n, we introduce the photon-added squeezed thermo state (PASTS) and investigate its statistical properties, such as Mandel's Q-parameter, number distribution (as a Legendre polynomial), the Wigner function. We then study its decoherence in a photon-loss channel in term of the negativity of WF by deriving the analytical expression of WF for PASTS. It is found that the WF with single photon-added is always partial negative for the arbitrary values of n and the squeezing parameter r.

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Xue-xiang Xu, Li-yun Hu, Hong-yi Fan. 2009-07-28. Photon--added squeezed thermal states: statistical properties and its decoherence in a photon-loss channel. https://doi.org/10.1016/j.optcom.2009.12.043

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