论文标题
通过使用经典驾驶调节移动问题的量子演变
Modulating quantum evolution of moving-qubit by using classical driving
论文作者
论文摘要
在这项工作中，我们研究了通过经典驾驶场调制的开放运动量子量的量子演变。我们在零温度下获得了Qubit的密度运算符，并通过使用量子速度限制时间（QSLT）和最近引入的非马克维亚度度量来分析其量子演化动力学。结果表明，非马克维亚环境和经典驾驶都可以加快进化过程，这种量子加速过程是由非马克维亚性引起的，关键点仅取决于量子速度。此外，量子运动将延迟演化过程，但是量子速度对量子加速的这种负面影响可以通过经典驾驶来抑制。最后，我们通过使用退化速率给出相应的物理解释。
In this work, we study quantum evolution of an open moving-qubit modulated by a classical driving field. We obtain the density operator of qubit at zero temperature and analyze its quantum evolution dynamics by using quantum speed limit time (QSLT) and a non-Markovianity measure introduced recently. The results show that both the non-Markovian environment and the classical driving can speed up the evolution process, this quantum speedup process is induced by the non-Markovianity and the critical points only depend on the qubit velocity. Moreover, the qubit motion will delay the evolution process, but this negative effect of the qubit velocity on the quantum speedup can be suppressed by the classical driving. Finally, we give the corresponding physical explanation by using the decoherence rates.
