Squeezing of the multiple-photon-added squeezed thermal state and its Wigner-function evolution in a laser channel

Squeezing of the multiple-photon-added squeezed thermal state and its Wigner-function evolution in a laser channel
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激光通道中多光子压缩热态的压缩及其维格纳函数演化

DOI:
10.1088/1555-6611/ab19b9
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发表时间:
2019-05
期刊:
影响因子:
1.2
通讯作者:
Xiang-guo Meng
Xiang-guo Meng
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Ye-jun Xu;Xiang-guo Meng

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我们通过算子排序的积分方法对多光子压缩热态(MPASTS)的归一化和压缩特征及其在激光通道中的演化进行了分析和数值研究。发现归一化常数与雅可比多项式成正比,无论是对称操作还是非对称操作,光子相加都会削弱和压缩程度。此外,在对称情况下,MPASTS的非经典性随着光子相加数的增加而增强,但随着热场平均光子数和激光器腔损耗的增加而降低。
We analytically and numerically investigate the normalization and squeezing features of the multiple-photon-added squeezed thermal state (MPASTS) and its evolution in a laser channel via the integral method for operator ordering. It is found that the normalization constant is proportional to the Jacobi polynomials, and the sum squeezing degree can be weakened by the photon addition for both symmetric and asymmetric operations. Moreover, the nonclassicality of the MPASTS can be enhanced with increase of the photon-addition numbers for the symmetric cases, but decreased as the average photon numbers of the thermal field and the cavity loss of the laser are increased.
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影响因子: 1.1
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