1. Nonclassicality revival of photon-added displaced thermal states in the amplitude decay channel
- Author
-
Ran Zhang, Ji-Suo Wang, Xiang-Guo Meng, and Jian-Meng Sun
- Subjects
Physics ,Photon ,Quantum decoherence ,General Physics and Astronomy ,Quantum Physics ,01 natural sciences ,010309 optics ,Amplitude ,Quantum electrodynamics ,0103 physical sciences ,Thermal ,Thermal state ,010306 general physics ,Communication channel - Abstract
In this paper, the decoherence features of the photon-added displaced thermal state (PADTS) in the amplitude decay channel were studied by analytically and numerically investigating the time evolution of the Wigner function. The normal product representation of density for the PADTS is presented. The results indicate that the nonclassicality of PADTS can revive after disappearing with time. This kind of revival can maintain for a period of time and inevitably disappear eventually. However, we find that the operation of adding photons has the effect of reducing the decoherence rate of PADTS in the amplitude decay channel, although it also can decrease the PADTS’s nonclassicality markedly.
- Published
- 2020