The Wigner-Yanase Information of Two Coupled Two-level Atoms Interacting with Two-mode Squeezed Vacuum Field
Mi Li · Journal of Jimei University · 2015
The change of the total Wigner-Yanase skew information of two coupled two-level atoms interacting with two-mode squeezed vacuum state field was investigated. The results showed that when the squeezed factor was smaller,the interaction between atoms and field,the dipole-dipole interaction of two atoms determined evolution period of the total Wigner-Yanase skew information together; enhancing the dipoledipole interaction of two atoms could resist the loss of the total Wigner-Yanase skew information; the squeezed factor of light field played an important role in the loss of the total Wigner-Yanase skew information,and when the squeezed factor was bigger,the total Wigner-Yanase skew information of atoms would lose completely.