论文标题
广义自旋模型的born-markov近似之外的量子回归
Quantum regression beyond the Born-Markov approximation for generalized spin-boson models
论文作者
论文摘要
开放量子系统的量子回归公式包括其多时间相关函数条件的无限层次结构，因此需要完全访问总“系统+环境”演变，并提供了比CP分布性更强的要求。在这里，我们分析了CP-划分性，并检查一类广义自旋 - 玻璃孔（GSB）模型以外的量子回归的有效性（例如弱耦合极限），从而引起了多级振幅阻尼的演化；在所有情况下，都可以以完全满足量子回归的方式来设计系统浴耦合。
The quantum regression formula for an open quantum system consists in an infinite hierarchy of conditions for its multi-time correlation functions, thus requiring full access to the total "system+environment" evolution, and providing a stronger requirement than CP-divisibility. Here, we analyze CP-divisibility and check the validity of quantum regression beyond the Born-Markov approximation (e.g. weak coupling limit) for a class of generalized spin-boson (GSB) models giving rise to a multi-level amplitude-damping evolution; in all cases, it is possible to engineer the system-bath coupling in such a way that quantum regression is exactly satisfied.
