物理
连贯性(哲学赌博策略)
量子
热的
量子力学
统计物理学
量子动力学
量子不和谐
热力学
作者
Mourad Benzahra,Zakaria Dahbi,M. Mansour,Zakaria Bouafia
出处
期刊:Modern Physics Letters A
[World Scientific]
日期:2024-05-30
标识
DOI:10.1142/s0217732324500779
摘要
This paper delves into the exploration of quantum resources within a two-qubit system composed of two 2-level atoms connected to distinct thermal baths. Various quantifiers are employed to evaluate different aspects of the system’s quantum characteristics. Specifically, the [Formula: see text]-norm and relative entropy of coherence ([Formula: see text] and [Formula: see text]) are utilized to gauge quantum coherence, while local quantum Fisher information (LQFI) is used to quantify non-classical correlations within the system. The findings suggest that the amount of quantum correlations and coherence decline as the spontaneous emission rate [Formula: see text] and the mean thermal photon number n increase. However, it is observed that manipulating parameters defining the initial state of the two-level atoms system can enhance non-classical correlations and quantum coherence between the two atoms. Additionally, it is noted that these three key metrics entirely vanish in the asymptotic limit of time. Our research underscores the importance of precisely adjusting the parameters of the initial system state, which is prepared in an extended Werner-like state (EWL), to protect quantum resources shared between the two atoms from environmental influences.
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