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题名: Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms
作者: Zhang, GF;  Zhu, HJ
刊名: SCIENTIFIC REPORTS
出版日期: 2015
卷号: 5, 期号:0, 页码:8756
学科分类: Science & Technology - Other Topics
DOI: http://dx.doi.org/10.1038/srep08756
通讯作者: Zhang, GF (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Dept Phys, Xueyuan Rd 37, Beijing 100191, Peoples R China.
文章类型: Article
英文摘要: The anisotropic Rabi model, which was proposed recently, differs from the original Rabi model: the rotating and counter-rotating terms are governed by two different coupling constants. This feature allows us to vary the counter-rotating interaction independently and explore the effects of it on some quantum properties. In this paper, we eliminate the counter-rotating terms approximately and obtain the analytical energy spectrums and wavefunctions. These analytical results agree well with the numerical calculations in a wide range of the parameters including the ultrastrong coupling regime. In the weak counter-rotating coupling limit we find out that the counter-rotating terms can be considered as the shifts to the parameters of the Jaynes-Cummings model. This modification shows the validness of the rotating-wave approximation on the assumption of near-resonance and relatively weak coupling. Moreover, the analytical expressions of several physics quantities are also derived, and the results show the break-down of the U(1)-symmetry and the deviation from the Jaynes-Cummings model.
类目[WOS]: Multidisciplinary Sciences
关键词[WOS]: CIRCUIT QUANTUM ELECTRODYNAMICS
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11174024] ;  State Key Laboratory of Low-Dimensional Quantum Physics (Tsinghua University) [KF201407] ;  State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF201CJ1] ;  Beijing Higher Education Young Elite Teacher Project [YETP 1141]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21070
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Zhang, GF,Zhu, HJ. Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms[J]. SCIENTIFIC REPORTS,2015,5(0):8756.
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