Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1862182 | Physics Letters A | 2007 | 7 Pages |
Abstract
Using the entangled state representation of Wigner operator and the technique of integration within an ordered product (IWOP) of operators, the Wigner function of the pair coherent state is derived. The variations of the Wigner function with the parameters α and q in the ρ–γρ–γ phase space are discussed. The physical meaning of the Wigner function for the pair coherent state is given by virtue of its marginal distributions. The tomogram of the pair coherent state is calculated with the help of the Radon transform between the Wigner operator and the projection operator of the entangled state |η1,η2,τ1,τ2〉|η1,η2,τ1,τ2〉.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Xiang-Guo Meng, Ji-Suo Wang, Hong-Yi Fan,