Quantum statistical properties of photon-added spin coherent states
Quantum statistical properties of photon-added spin coherent states
复制标题
DOI：
10.1088/1674-1056/26/11/114202
复制
发表时间：
2017-10
影响因子：
1.7
通讯作者：
G. Honarasa
中科院分区：
文献类型：
--
作者：
G. Honarasa
加入光子的自旋相干态是一种新的相干态，是通过适当提升算子对普通自旋相干态的迭代作用而定义的。本文研究了加光子自旋相干态的光子数分布、二阶相关函数和维格纳函数等量子统计特性。发现Wigner函数在某些区域呈负性，二阶相关函数小于1。因此，加入光子的自旋相干态是非经典态。
The photon-added spin coherent state as a new kind of coherent state has been defined by iterated actions of the proper raising operator on the ordinary spin coherent state. In this paper, the quantum statistical properties of photon-added spin coherent states such as photon number distribution, second-order correlation function and Wigner function are studied. It is found that the Wigner function shows the negativity in some regions and the second-order correlation function is less than unity. Therefore, the photon-added spin coherent state is a nonclassical state.