论文标题

量子回归中的量子现象

Quantum regression in dephasing phenomena

论文作者

Lonigro, Davide, Chruściński, Dariusz

论文摘要

我们研究了量子回归对量子哈密顿家族对多部分系统的有效性,从而导致相阻尼减少动力学。在找到相应通道的CP划分性的必要条件之后,我们评估了等于在任意干预措施下量子回归有效性的方程层次结构;特别是,我们发现非平凡dephasing与量子回归兼容的必要条件。在此框架中,我们研究了一类Dephasing型概括性自旋 - 玻璃体(GSB)模型,研究了Qubit-Encrientment偶联函数的存在,以确保量子回归的确切有效性。

We investigate the validity of quantum regression for a family of quantum Hamiltonians on a multipartite system leading to phase-damping reduced dynamics. After finding necessary and sufficient conditions for the CP-divisibility of the corresponding channel, we evaluate a hierarchy of equations equivalent to the validity of quantum regression under arbitrary interventions; in particular, we find necessary conditions for a nontrivial dephasing to be compatible with quantum regression. In this framework, we study a class of dephasing-type generalized spin-boson (GSB) models, investigating the existence of qubit-environment coupling functions that ensure the exact validity of quantum regression.

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