物理学报Issue(16)：17-21,5.DOI:10.7498/aps.62.160301
Rabi模型的光场压缩*
Photon squeezing of the Rabi model*
摘要
Abstract
Recent experiments about the circuit cavity quantum electrodynamics have realized the ultrastrong couplings between the artificial atom and the photon, in which the coupling strengths have the same order of the photon frequency. In such a regime, the well-known rotating wave approximation is invalid, and the system dynamics is thus governed by the Rabi model. In this paper, we investigate the photon squeezing of the Rabi model. We find numerically that with the increase of the atom-photon coupling strength, the photon squeezing does not increase linearly, but displays a maximum in the ultrastrong coupling regime. In addition, we also reveal that the photonsqueezing can be enhanced by the counter-rotating terms of the Rabi model. Our results are of benefit to preparing the required squeezing state of the photon in experiment.关键词
Rabi模型/超强耦合/光场压缩Key words
Rabi model/ultra-strong coupling/photon squeezing引用本文复制引用
俞立先,梁奇锋,汪丽蓉,朱士群..Rabi模型的光场压缩*[J].物理学报,2013,(16):17-21,5.基金项目
国家自然科学基金(批准号:11074184,11275129,61275211)和浙江省自然科学基金(批准号LY13A040001)资助的课题.*Project supported by the National Natural Science Foundation of China (Grant Nos.11074184,11275129,61275211) and the Natural Science Founda-tion of Zhejiang Province, China (Grant No. LY13A040001) （批准号:11074184,11275129,61275211）
