Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms

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	Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms
	Zhang, GF; Zhu, HJ
刊名	SCIENTIFIC REPORTS
	2015
卷号	5 期号:0 页码:8756
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.
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.
学科主题	Science & Technology - Other Topics
类目[WOS]	Multidisciplinary Sciences
关键词[WOS]	CIRCUIT QUANTUM ELECTRODYNAMICS
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21070]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Zhang, GF,Zhu, HJ. Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms[J]. SCIENTIFIC REPORTS,2015,5(0):8756.
APA	Zhang, GF,&Zhu, HJ.(2015).Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms.SCIENTIFIC REPORTS,5(0),8756.
MLA	Zhang, GF,et al."Analytical Solution for the Anisotropic Rabi Model: Effects of Counter-Rotating Terms".SCIENTIFIC REPORTS 5.0(2015):8756.