We put forward a physical model of a uniformly accelerated Unruh-DeWitt battery and use quantum work extraction as a probe to witness the thermal nature of the Unruh effect in a high dimensional Minkowski spacetime. By means of the open quantum system approach, we investigate the maximal amount of quantum work extraction with respect to the acceleration-induced Unruh temperature, spacetime dimensionality and field mass. It has been found that the steady amount of quantum work extraction in the asymptotic condition is just determined by the Unruh temperature in arbitrary dimensional spacetimes. The asymptotic behavior can demonstrate the global feature of Unruh thermality dependent on the Kubo-Martin-Schwinger condition. From a local viewpoint of Unruh effect, we study the different ways for the dynamics of quantum work extraction when the battery gradually arrives at the same steady state. In the massless scalar field, the evolution with a small acceleration takes on a unique monotonicity in $D=3$ dimensional spacetime and changes to a decaying oscillation for other higher dimensions. The increase in spacetime dimensionality can increase the energy storage capacity of the moving battery. If the mass of the scalar field is considered, the related quantum work extraction is so robust against the Unruh decoherence that the high values can keep for a very long time. The persistence of quantum work extraction is strengthened in higher dimensional spacetime.
Decoherence of ergotropy of a relativistic battery as a probe of motion-selected Unruh thermality in Minkowski spacetime
Suzhou University of Science and Technology（苏州科技大学）；Pacific Institute of Theoretical Physics, Department of Physics and Astronomy, University of British Columbia（不列颠哥伦比亚大学物理与天文学系太平洋理论物理研究所）
University of York（约克大学）；Universidade Estadual Paulista（圣保罗州立大学）；Universidade de São Paulo（圣保罗大学）；Austrian Academy of Sciences（奥地利科学院）；Rutherford Appleton Laboratory（鲁瑟福阿普尔顿实验室）；University of Strathclyde（思克莱德大学）；Universidade Federal do Pará（帕拉联邦大学）；University of Oxford（牛津大学）
Cavity-controlled Inhibition of Decoherence in Accelerated Quantum Detectors
Indian Institute of Technology Madras（印度马德拉斯理工学院）；Vellore Institute of Technology（维洛尔理工大学）；Indian Institute of Science Education & Research (IISER) Mohali（印度科学教育研究学院穆扎哈尔分校）
Unruh effect for inertial observers through vacuum correlations
本文研究了形成黑洞的二维坍缩模型中的动态Unruh效应。在这个二维坍缩模型中，一个耦合到介子引力的标量场向左运动，坍缩形成一个黑洞。在$x\to\infty$和$x\to-\infty$周围有两组渐近（$t\to\infty$）观测器。在右零无限远的观测者见证了与时间相关的辐射热通量，导致黑洞的形成及其随后的霍金蒸发，以预期的方式。我们表明，即使是在左零无穷大的观察者发现自己在热环境中，没有经历任何变化的时空几何沿其轨迹。它们作为惯性观测者保持在时空的\emph{flat}区域中，在该区域中，曲率张量在整个时空的一部分中相同地消失。这些观测者发现量子场的状态是在一个晚期的热组态中，其中\emph{exactly the same}的温度是由观测者在右零无穷远处测量的，{ \it尽管在其整个历史中在平坦时空区域是惯性的}。这与平坦时空中的标准昂鲁效应非常密切相关，除了一个关键的区别-因为它们自始至终都是惯性的，而且{ \it在过去的光锥中没有因果连接的源来解释它们所看到的东西}。这个结果来自于量子关联，它延伸到过去光锥之外，在概念上类似于EPR关联。
