Population inversion of a driven two-level system in a structureless bath.
Population inversion of a driven two-level system in a structureless bath.
复制标题
无结构浴中驱动两能级系统的粒子数反演。
DOI：
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发表时间：
2005
影响因子：
8.6
通讯作者：
S. Barrett
中科院分区：
文献类型：
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作者：
T. Stace;A. Doherty;S. Barrett
推导了受非结构声子浴抑制的驱动双量子点的主方程，并计算了其谱密度。我们发现，浴介导的光子吸收在相对较强的驱动中是重要的，甚至可能主导动力学，导致双点系统的布居反转。这一现象与最近的实验观测结果一致。
We derive a master equation for a driven double quantum dot damped by an unstructured phonon bath, and calculate the spectral density. We find that bath-mediated photon absorption is important at relatively strong driving, and may even dominate the dynamics, inducing population inversion of the double-dot system. This phenomenon is consistent with recent experimental observations.