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arXiv 2012.13859quant-ph
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相对论参考系中的量子速度极限时间

Quantum speed limit time in relativistic frame

N. A. Khan, M. Jan

AI总结:

本文研究相对论效应如何影响与振幅及相位阻尼通道耦合的量子系统演化速度,揭示 QSLT 随加速度和阻尼强度变化的单调与非单调规律。

摘要:

我们研究了相对论效应对与振幅阻尼通道耦合的量子系统演化速度的作用。我们发现,对于阻尼参数 $p_τ\lesssim p_{τ_{c0}}$,相对论效应会加速量子演化,使开放量子系统达到均匀的演化速度。此外,我们指出,在阻尼极限 $p_{τ_{c0}}\lesssim p_τ\lesssim p_{τ_{c1}}$ 内,量子速度极限时间(QSLT)随加速度呈非单调行为:相对论效应首先加速、随后减缓受阻尼系统的量子演化过程。对于阻尼强度 $p_{τ_{c1}}\lesssim p_τ$,我们观察到 QSLT 单调增加,导致受阻尼系统的量子演化减缓。此外,我们还考察了相对论效应对与相位阻尼通道耦合的系统的速度极限时间的作用。

英文摘要:

We investigate the roles of the relativistic effect on the speed of evolution of a quantum system coupled with amplitude damping channels. We find that the relativistic effect speed-up the quantum evolution to a uniform evolution speed of open quantum systems for the damping parameter $p_τ\lesssim p_{τ_{c0}}.$ Moreover, we point out a non-monotonic behavior of the quantum speed limit time (QSLT) with acceleration in the damping limit $p_{τ_{c0}}\lesssim p_τ\lesssim p_{τ_{c1}},$ where the relativistic effect first speed-up and then slow down the quantum evolution process of the damped system. For the damping strength $p_{τ_{c1}}\lesssim p_τ$, we observe a monotonic increasing behavior of QSLT, leads to slow down the quantum evolution of the damped system. In addition, we examine the roles of the relativistic effect on the speed limit time for a system coupled with the phase damping channels.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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