Time-Dependent Spectrum of a Two-Level System Coupled to a Heat Bath Driven by Pulsed Laser
Time-Dependent Spectrum of a Two-Level System Coupled to a Heat Bath Driven by Pulsed Laser
复制标题
与脉冲激光驱动的热浴耦合的两级系统的时变光谱
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
R. Kubo
中科院分区：
文献类型：
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作者：
Y. Tanimura;R. Kubo
考虑了一个两能级系统与一个热浴系统的对角耦合，该热浴系统由具有适当频谱的简谐振子组成，产生马尔可夫随机扰动。假定调制条件相对较弱或较快，我们利用Eberly和Wodkiewicz提出的物理谱，计算了在任意强度的连续波和脉冲激光驱动下系统的光谱。结果给出了相干谱和非相干谱；阐明了物理参数的变化对这些分量的动态演化的影响。
A two-level system diagonally coupled to a heat bath consisting of harmonic oscillators with a proper frequency spectrum producing a Markoffian random perturbation is considered. Assuming relatively weak or fast modulation conditions, we calculate spectra from the system driven by a continuous wave and a pulsed laser of arbitrary strength by applying the physical spectrum proposed by Eberly and Wodkiewicz. The results give the coherent and the incoherent spectra; clarification of how dynamical evolution of these components is influenced by the change of physical parameters is obtained.