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arXiv 2011-12-05 DOI 10.3788/COL201210.082701 0 views

New approach for normalization and photon-number distributions of photon-added (-subtracted) squeezed thermal states

Hu, Li-Yun · Zhang, Zhi-Ming

Original · EN

Using the thermal field dynamics theory to convert the thermal state to a "pure" state in doubled Fock space, it is found that the average value of efa†a under squeezed thermal state (STS) is just the generating function of Legendre polynomials, a remarkable result. Based on this point, the normalization and photon-number distributions of m-photon added (or subtracted) STS are conviently obtained as the Legendre polynomials. This new concise method can be expanded to the entangled case.

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