Phase-sensitive nonclassical properties of photon-added-then-subtracted coherent squeezed states |
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| Authors: | Liu Gang Wu Mu-Sheng and Hu Li-Yun |
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| Affiliation: | College of Physics & Communication Electronics,Jiangxi Normal University,Nanchang 330022,China |
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| Abstract: | We investigate the nonclassical properties of the photon-added-then-subtracted coherent squeezed state(PASCSS) via the sub-Poissonian statistics,the photon-number distribution,and the negativity of the Wigner function.It is found that the PASSCS is a superposition state of D(β)S(ζ)|0>,D(β)S(ζ)|1>,and D(β)S(ζ)|2>.We find that the Mandel Q parameter,the photon-number distribution,and the negative volume of the Wigner function of the PASCSS are all periodic functions of the compound φ-θ/2 with a period π involved with squeezing and displacement parameters. |
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| Keywords: | photon-number distribution non-Gaussian state quantum-state engineering |
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