CAJ | 학술논문

在无旋波近似下,研究了一个二能级系统与零温结构库的相互作用.当系统与环境为弱耦合时,推导出描述系统状态演化的主方程.解析与数值结果均表明,反旋转波项对系统的非马可夫动力学起着重要作用.同时也分析了最近提出的两种非马可夫度量之间的差别.
재무선파근사하,연구료일개이능급계통여령온결구고적상호작용.당계통여배경위약우합시,추도출묘술계통상태연화적주방정.해석여수치결과균표명,반선전파항대계통적비마가부동역학기착중요작용.동시야분석료최근제출적량충비마가부도량지간적차별.
The non-Markovianity for a two-level system interacting is studied with a zero-temperature structuredenvironment without rotating wave approximation.In the limit of weak coupling between the system and thereservoir,the time-local non-Markovian master equation for the reduced state of the system is derived.Both theanalytic and numerical results show that the counter-rotating wave terms play an important role for thenon-Markovian dynamics of the system.And the difference of the two non-Markovian measures is proposedrecently.