从真空中摇出光子：振动原子的加速辐射
量子物理
2020-03-05 v1
摘要
加速辐射——或称Unruh辐射——即一个始终加速的观察者或探测器所观测到的热辐射，尽管与Hawking辐射有相似之处，但迄今为止被证明极难在实验中观测到。近期一种提议是，在镜面存在下，处于基态的原子恒加速可激发该原子，同时以Unruh型过程使其发射一个光子。在本工作中我们表明，仅仅通过摇动该原子，例如作简谐运动，即可产生相同效应。我们在一阶微扰论中计算了此过程的跃迁率，并考虑了原子在静止镜面附近、在腔体内或仅在空真空中的简谐运动。对于后者，我们提出了一种电路QED(circuit-QED)的潜在实现，其跃迁率为 ，可能在实验上可被探测到。
引用
@article{arxiv.2003.02258,
title = {Shaking photons from the vacuum: acceleration radiation from vibrating atoms},
author = {Brian P. Dolan and Aonghus Hunter-McCabe and Jason Twamley},
journal= {arXiv preprint arXiv:2003.02258},
year = {2020}
}
备注
10 pages, 3 figures. This is an author-created, un-copyedited version of an article published in New Journal of Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. This article is published under a CC BY licence. The Version of Record is available online at https://doi.org/10.1088/1367-2630/ab7bd5