A measure of non-classicality of even and odd coherent states

作者：Ye Yong Hua^*; Li Zhi Jian; Zeng Gao Jian

来源：Chinese Physics Letters, 2008, 25(4): 1175-1178.

A measure of non-classicality of even and odd coherent states is studied. We first calculate the Wigner functions of the even and odd coherent states, which consists of two terms: the positive-definite Gaussian term and the wave term with negativity, and then calculate the integrated value epsilon(max) of the wave term of the Wigner functions of the even and odd coherent states in their area with negativity, and use epsilon(max) to measure non-classicality of the even and odd coherent states. For the even and odd coherent states with certain photon count, it is very convenient for us to use epsilon(max) to measure their non- classicality. The methods of our definition and calculation for epsilon(max) have theoretical reference value.

• 出版日期2008-4
• 单位湖南师范大学; 湘南学院; 湖南第一师范学院