论文标题
开放量子多体系统中的非平衡非平衡非稳态：海森贝格量子旋转链中的持续振荡
Non-equilibrium non-Markovian steady-states in open quantum many-body systems: Persistent oscillations in Heisenberg quantum spin chains
论文作者
论文摘要
我们研究了非马克维亚，结构化储层对开放的海森堡自旋链的影响。我们建立了一个连贯的自我反馈机制，作为储层夫妇频率依赖于自旋链。因此，由于自旋链与自己的过去的相互作用，损失和驾驶发生。这种非马克维亚施加边界驱动的新范式允许讨论一种新型的非平衡稳态。我们表明，对于某些参数，即使在长期极限中持续振荡也发生在链中。此外，我们证明了这些振荡和激发陷阱的条件取决于链的特征，因此可以通过检测其在自反馈影响下的发射信号来表征链条。
We investigate the effect of a non-Markovian, structured reservoir on an open Heisenberg spin chain. We establish a coherent self-feedback mechanism as the reservoir couples frequency-dependent to the spin chain. Thus, loss and driving take place due to the interaction of the spin chain with its own past. This new paradigm of non-Markovian imposed boundary-driving allows to discuss a new kind of non-equilibrium steady-state. We show that for certain parameters even in the long-time limit persistent oscillations occur within the chain. Moreover, we demonstrate that the conditions for these oscillations and excitation trapping depend on the characteristics of the chain, thus making it possible to characterize a chain by detection of its emitted signal under influence of self-feedback.
