JIANG Jun-qin. Wigner function of superposition of the excited coherent states[J]. Chinese Journal of Quantum Electronics, 2010, 27(2): 193
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The superposition state from the excited coherent state was constructed. Dependences of Wigner function on θ and m and its marginal distributions for the superposition state were numerically investigated. It is shown that the superposition state is always able to exhibit the non-classical properties for any θ, Wigner function and its marginal distributions evidently depend on θ and m.