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Generating a Nonclassical Thermal State Via Number Operators
Journal of Low Temperature Physics ( IF 2 ) Pub Date : 2020-08-06 , DOI: 10.1007/s10909-020-02509-z
Gang Ren , Jian-ming Du , Hai-jun Yu , Wen-hai Zhang

We study a nonclassical thermal state by repeatedly operating the number operator on normal thermal state. Then, we investigate the nonclassical features of this state according to the P-function, photon-number distribution, Mandel’s Q-parameter, second-order correlation function and negative Wigner distribution as well as squeezing properties. Our results show that this state presents nonclassical properties, such as sub-Poissonian statistics, anti-bunching effects and negative Wigner distribution, at low temperature with small parameter m, which is the number of times for the number operator operates on normal thermal state. However, the squeezing effect of this state is not found.

中文翻译:

通过数算子生成非经典热态

我们通过在正常热态上重复操作数字算子来研究非经典热态。然后,我们根据 P 函数、光子数分布、曼德尔 Q 参数、二阶相关函数和负 Wigner 分布以及挤压特性研究该状态的非经典特征。我们的结果表明,该状态在低温下具有非经典特性,例如亚泊松统计、反聚束效应和负 Wigner 分布,参数 m 较小,m 是数算子在正常热状态下操作的次数。但是,没有发现这种状态的挤压效果。
更新日期:2020-08-06
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