Controllable non-Markovianity in phase relaxation
Controllable non-Markovianity in phase relaxation
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DOI：
10.1088/1367-2630/abbfcf
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发表时间：
2020-07
影响因子：
3.3
通讯作者：
Shingo Kukita;Yasushi Kondo;M. Nakahara
中科院分区：
文献类型：
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作者：
Shingo Kukita;Yasushi Kondo;M. Nakahara
最近，量子技术取得了显著的进展。鉴于此，研究开放量子系统作为这种量子器件的模型是重要的。量子设备通常需要极端的条件才能运行：这里的动力学可以是非马尔可夫的。这一发现使我们有必要从理论和实验两方面研究非马尔可夫开放量子系统。本文报道了两个重要结果：（1）一个简单但非平凡的理论模型的精确解;（2）通过NMR实验证明了该模型的非马尔可夫性是连续可控的。我们观察到理论和实验之间的定性协议。
Recently remarkable progress in quantum technology has been witnessed. In view of this it is important to investigate an open quantum system as a model of such quantum devices. Quantum devices often require extreme conditions for the devices to operate: dynamics can be non-Markovian here. This observation necessitates us to investigate a non-Markovian open quantum system, both theoretically and experimentally. In this paper, we report two important results: (1) exact solution of a simple but non-trivial theoretical model and (2) demonstration of this model by NMR experiments, where non-Markovianity is continuously controllable. We observe qualitative agreement between theory and experiment.