Coherently amplifying photon production from vacuum with a dense cloud of accelerating photodetectors
Coherently amplifying photon production from vacuum with a dense cloud of accelerating photodetectors
复制标题
通过密集的加速光电探测器云相干地放大真空中的光子产生
DOI:
10.1038/s42005-021-00622-3
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发表时间:
2021
影响因子:
5.5
通讯作者:
Blencowe, Miles
中科院分区:
文献类型:
--
作者:
Wang, Hui;Blencowe, Miles
An accelerating photodetector is predicted to see photons in the electromagnetic vacuum. However, the extreme accelerations required have prevented the direct experimental verification of this quantum vacuum effect. In this work, we consider many accelerating photodetectors that are contained within an electromagnetic cavity. We show that the resulting photon production from the cavity vacuum can be collectively enhanced such as to be measurable. The combined cavity-photodetectors system maps onto a parametrically driven Dicke-type model; when the detector number exceeds a certain critical value, the vacuum photon production undergoes a phase transition from a normal phase to an enhanced superradiant-like, inverted lasing phase. Such a model may be realized as a mechanical membrane with a dense concentration of optically active defects undergoing gigahertz flexural motion within a superconducting microwave cavity. We provide estimates suggesting that recent related experimental devices are close to demonstrating this inverted, vacuum photon lasing phase.
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