Wigner Function of Thermo-Invariant Coherent State
XU Xue-Fen1,2, ZHU Shi-Qun1
1School of Physical Science and Technology, Suzhou University, Suzhou 2150062School of Mathematics and Physics, Jiangsu Teachers University of Technology, Changzhou 213001
Wigner Function of Thermo-Invariant Coherent State
XU Xue-Fen1,2, ZHU Shi-Qun1
1School of Physical Science and Technology, Suzhou University, Suzhou 2150062School of Mathematics and Physics, Jiangsu Teachers University of Technology, Changzhou 213001
摘要By using the thermal Winger operator of thermo-field dynamics in the coherent thermal state |ξ> representation and the technique of integration within an ordered product of operators, the Wigner function of the thermo-invariant coherent state |z, N>is derived. The nonclassical properties of state |z, N> is discussed based on the negativity of the Wigner function.
Abstract：By using the thermal Winger operator of thermo-field dynamics in the coherent thermal state |ξ> representation and the technique of integration within an ordered product of operators, the Wigner function of the thermo-invariant coherent state |z, N>is derived. The nonclassical properties of state |z, N> is discussed based on the negativity of the Wigner function.
2008, Vol. 25 
