中国物理B ›› 2014, Vol. 23 ›› Issue (5): 50301-050301.doi: 10.1088/1674-1056/23/5/050301
张国平a, 郑凯敏a, 刘世右a, 胡利云a b
Zhang Guo-Ping (张国平)a, Zheng Kai-Min (郑凯敏)a, Liu Shi-You (刘世右)a, Hu Li-Yun (胡利云)a b
摘要: We introduce a kind of non-Gaussian entangled state, which can be obtained by operating a non-local coherent photon-subtraction operation on a two-mode squeezed vacuum. It is found that its normalization factor is only related to the Legendre polynomials, which is a compact expression. Its statistical properties are discussed by the negative region Wigner function with the analytical expression. As an application, the quantum teleportation for coherent states is considered by using the non-Gaussian state as an entangled channel. It is found that the teleportation fidelity can be enhanced by this non-Gaussian operation.
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