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Generating a Nonclassical Thermal State Via Number Operators

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Abstract

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.

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Acknowledgement

This work is supported by the Natural Science Foundation of the Anhui Higher Education Institutions of China (Grant No. KJ2019A0688).

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  1. School of Electronic Engineering, Huainan Normal University, Huainan, 232001, China

    Gang Ren, Jian-ming Du, Hai-jun Yu & Wen-hai Zhang

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  1. Gang Ren
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  2. Jian-ming Du
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Correspondence to Gang Ren.

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Ren, G., Du, Jm., Yu, Hj. et al. Generating a Nonclassical Thermal State Via Number Operators. J Low Temp Phys 201, 426–436 (2020). https://doi.org/10.1007/s10909-020-02509-z

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