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arXiv 2112.01889hep-thgr-qc
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热背景下的反Unruh效应

Anti-Unruh effect in the thermal background

Yongjie Pan, Baocheng Zhang

摘要:

我们研究了热背景对反Unruh效应存在的影响。对于无质量的标量场,我们提出了反Unruh效应可以出现时,探测器在热场中加速,这是不存在时,在闵可夫斯基真空加速。对于有质量的标量场,发现真空中加速探测器的反Unruh效应随着背景温度的升高而消失。利用多体纠缠量子态研究了有质量标量场的情况。当多体态被加速时,其纠缠度随着背景温度的升高而减小,并出现纠缠猝死现象。这提供了一个有价值的指示,即反Unruh效应可以存在于某些特定的背景温度以下,这取决于实际的实验环境。

英文摘要:

We study the influence of the thermal background on the existence of the anti-Unruh effect. For the massless scalar field, we present that the anti-Unruh effect can appear when the detector is accelerated in the thermal field, which is shown to be absent when accelerating in the Minkowski vacuum. For the massive scalar field, it is found that the anti-Unruh effect which exists in the case for accelerated detectors in the vacuum can disappear when the background temperature increases. We use the many-body entangled quantum state to study the situation of the massive scalar field. When the many-body state is accelerated, its entanglement is decreasing with the increase of the background temperature and the phenomenon of the sudden death for entanglement occurs. This provides a valuable indication that the anti-Unruh effect can exist below some specific background temperature, dependent on the actual experimental environment.

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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