论文标题
螺旋旋转系统和非马克维亚浴的信息回流的切换
Switching of the information backflow between a helical spin system and non-Markovian bath
论文作者
论文摘要
研究了自旋链的耗散动力学与非马克维亚宏伟的储层相连。由于磁电耦合而形成链的手性。我们探索了痕量距离衍生物的迹象，并在系统时间演变中发现了交替的正/负周期。负符号与从系统到浴室的信息流有关，并降低了状态的区分性，而正符号与信息的流动相反，并增加了区分性。我们发现了施加的电场和磁场的明显效果。尽管dzyaloshinskii-moriya相互作用和外部电场导致了时期的改组，但施加的磁场导致迅速的阳性阴性过渡。因此，在耦合到非马克维亚宏伟浴缸的螺旋量子环中，可以控制通过外场的信息流的方向。
The dissipative dynamics of the spin chain coupled to the non-Markovian magnonic reservoir was studied. The chirality of the chain is formed due to the magnetoelectric coupling. We explored the sign of the trace distance derivative and found the alternating positive/negative periods in system's time evolution. The negative sign is associated with the flow of information from the system to the bath and decrease in states distinguishability, while the positive sign is related to the flow of the information in the opposite direction and increase in distinguishability. We found the distinct effect of the applied electric and magnetic fields. While the Dzyaloshinskii-Moriya interaction and external electric field lead to reshuffling of the periods, the applied magnetic field leads to the swift positive-negative transitions. Thus, in the helical quantum rings coupled to the non-Markovian magnonic baths, it is possible to control the directions of information flow through the external fields.
