AI 中文总结
研究非互易量子姆潘巴效应，通过交换耦合开放量子系统的两个同构储能器参数来开启或关闭该效应，此操作改变刘维尔算子，非互易性由本征向量承载，在例外点有特殊表现。
AI 中文摘要
我们展示了一种非互易量子姆潘巴效应。考虑一类广泛的开放量子系统，每个系统通过对称端口与两个同构储能器耦合。交换两个储能器的参数——我们称之为交换的离散操作——可在不改变初始状态的情况下开启或关闭量子姆潘巴效应。交换会修改刘维尔算子，然而一种结构对称性固定了本征值，同时仅旋转本征向量。因此，非互易性在能谱中不留痕迹，完全由本征向量承载。具体而言，交换改变了远态在最慢模式上的投影，切换其是否绕过最慢的弛豫通道。在刘维尔算子的例外点，远态的弛豫从绕过最慢模式转变为避免临界慢化，开-关对比度保持不变。在那里，与能谱无关的机制呈现出最纯粹的形式。
英文摘要
We demonstrate a nonreciprocal quantum Mpemba effect. Consider a broad class of open quantum systems, each coupled to two isomorphic reservoirs through symmetric ports. Interchanging the parameters of the two reservoirs -- a discrete operation we call the swap -- turns the quantum Mpemba effect on or off without changing the initial states. The swap modifies the Liouvillian, yet a structural symmetry pins the eigenvalues while rotating only the eigenvectors. The nonreciprocity therefore leaves no trace in the spectrum and is carried entirely by the eigenvectors. Concretely, the swap alters the far state's projection onto the slowest mode, switching whether it bypasses the slowest relaxation channel. At a Liouvillian exceptional point, the far state's relaxation switches from bypassing the slowest mode to avoiding the critical slowing, with the on--off contrast intact. There the spectrum-independent mechanism takes its purest form.
Comments6 pages, 2 figures
