A Kind of Atomic Coherent State as a Two-Mode Squeezed State

作者：Ma Shan Jun^*; Wang Shu Jing

来源：Communications in Theoretical Physics, 2009, 52(3): 511-516.

DOI：10.1088/0253-6102/52/3/25

• exponential operator
• cross-correlation function
• Wigner function
• Husimi function

We find that a kind of atomic coherent state, formed as exp[xi J( )-xi(double dagger)J(-)]vertical bar 00 >, when the SU(2) generators J( /-) are taken as Fan's form, J( ) = (1/2)(a(1)-a(2)(dagger))(a(1)(dagger)-a(2)), J(-) = (1/2)(a(1)(dagger) a(2))(a(1) a(2)(dagger)), and J(0) = (1/2)(a(1)(dagger)a(2)(dagger)-a(1)a(2)), is simultaneously a two-mode squeezed state. We analyse this squeezed state's physical properites, such as the cross correlation function, the Wigner function, and its marginal distribution as well as the Husimi function.

• 出版日期2009-9
• 单位江西师范大学