J4 ›› 2010, Vol. 27 ›› Issue (2): 193-197.

• Quantum Optics • Previous Articles     Next Articles

Wigner function of superposition of the excited coherent state

JIANG Jun-Qin   

  1. Department of Physics, Guangdong Institute of Education, Guangzhou 510303, China
  • Published:2010-03-28 Online:2010-03-05

Abstract:

The superposition state from the excited coherent state was constructed. The and m dependences of the Wigner function 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 , Wigner function and its marginal distributions are evidently depend on θ and m.

Key words: quantum optics, excited coherent state, superposition state, Wigner function, marginal distribution