A Mohamed Abdel-Baset, Hassan Shoukry S, Alharbey Rania A
College of Science, Prince Sattam Bin Abdulaziz University, Al-Aflaj 11942, Saudi Arabia.
Faculty of Science, Assiut University, Assiut 71515, Egypt.
Entropy (Basel). 2019 Feb 5;21(2):147. doi: 10.3390/e21020147.
Wehrl entropy and its density are used to investigate the dynamics of loss of coherence and information in a phase space for an atomic model of two-photon two-level atom coupled to different radiation reservoirs (namely, normal vacuum (NV), thermal field (TF) and squeezed vacuum (SV) reservoirs). Particularly, quantum interference (QI) effect, due to the 2-photon transition decay channels, has a paramount role in: (i) the atomic inversion decay in the NV case, which behaves as quantum Zeno and anti-Zeno decay effect; (ii) the coherence and information loss in the phase space; and (iii) identifying temporal information entropy squeezing. Results are also sensitive to the initial atomic state.
韦尔熵及其密度被用于研究与不同辐射库（即正常真空（NV）、热场（TF）和压缩真空（SV）库）耦合的双光子二能级原子的原子模型在相空间中的退相干和信息损失动力学。特别地，由于双光子跃迁衰变通道导致的量子干涉（QI）效应在以下方面起着至关重要的作用：（i）NV情况下的原子反转衰变，其表现为量子芝诺和反量子芝诺衰变效应；（ii）相空间中的相干和信息损失；以及（iii）识别时间信息熵压缩。结果也对初始原子态敏感。
