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Synchronization and non-Markovianity in open quantum systems
Physical Review A ( IF 2.9 ) Pub Date : 2021-06-21 , DOI: 10.1103/physreva.103.062217 Göktuğ Karpat , İskender Yalçinkaya , Barış Çakmak , Gian Luca Giorgi , Roberta Zambrini
Physical Review A ( IF 2.9 ) Pub Date : 2021-06-21 , DOI: 10.1103/physreva.103.062217 Göktuğ Karpat , İskender Yalçinkaya , Barış Çakmak , Gian Luca Giorgi , Roberta Zambrini
Detuned systems can spontaneously achieve a synchronous dynamics and display robust quantum correlations in different local and global dissipation regimes. Beyond the Markovian limit, information backflow from the environment becomes a crucial mechanism whose interplay with spontaneous synchronization is unknown. Considering a model of two coupled qubits, one of which interacts with a dissipative environment, we show that non-Markovianity is highly detrimental for the emergence of synchronization, for the latter can be delayed and hindered because of the presence of information backflow. The results are obtained considering both a master equation approach and a collision model based on repeated interactions, which represents a very versatile tool to tailor the desired kind of environment.
中文翻译:
开放量子系统中的同步与非马尔可夫性
失谐系统可以自发地实现同步动力学,并在不同的局部和全局耗散状态下显示出强大的量子相关性。超出马尔可夫极限,来自环境的信息回流成为一种关键机制,其与自发同步的相互作用是未知的。考虑两个耦合量子位的模型,其中一个与耗散环境相互作用,我们表明非马尔可夫性对同步的出现非常不利,因为同步的出现可能会由于信息回流的存在而被延迟和阻碍。结果是在考虑主方程方法和基于重复交互的碰撞模型的情况下获得的,这代表了一种非常通用的工具来定制所需的环境类型。
更新日期:2021-06-21
中文翻译:
开放量子系统中的同步与非马尔可夫性
失谐系统可以自发地实现同步动力学,并在不同的局部和全局耗散状态下显示出强大的量子相关性。超出马尔可夫极限,来自环境的信息回流成为一种关键机制,其与自发同步的相互作用是未知的。考虑两个耦合量子位的模型,其中一个与耗散环境相互作用,我们表明非马尔可夫性对同步的出现非常不利,因为同步的出现可能会由于信息回流的存在而被延迟和阻碍。结果是在考虑主方程方法和基于重复交互的碰撞模型的情况下获得的,这代表了一种非常通用的工具来定制所需的环境类型。