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Liu, MX; Chesi, S; Ying, ZJ; Chen, XS; Luo, HG; Lin, HQ; Luo, HG (reprint author), Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China.; Luo, HG (reprint author), Lanzhou Univ, Ctr Interdisciplinary Studies, Lanzhou 730000, Gansu, Peoples R China.; Luo, HG (reprint author), Lanzhou Univ, MoE, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China.
Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model
Source PublicationPHYSICAL REVIEW LETTERS
Language英语
AbstractWe investigate the quantum phase transition of the anisotropic quantum Rabi model, in which the rotating and counterrotating terms are allowed to have different coupling strengths. The model interpolates between two known limits with distinct universal properties. Through a combination of analytic and numerical approaches, we extract the phase diagram, scaling functions, and critical exponents, which determine the universality class at finite anisotropy (identical to the isotropic limit). We also reveal other interesting features, including a superradiance-induced freezing of the effective mass and discontinuous scaling functions in the Jaynes-Cummings limit. Our findings are extended to the few-body quantum phase transitions with N > 1 spins, where we expose the same effective parameters, scaling properties, and phase diagram. Thus, a stronger form of universality is established, valid from N = 1 up to the thermodynamic limit.
2017
Volume119Issue:22Pages:220601
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1103/PhysRevLett.119.220601
Funding OrganizationNational Science Foundation of China [11604009, 11574025, 11325417, 11674139, 1121403] ; National Science Foundation of China [11604009, 11574025, 11325417, 11674139, 1121403] ; National Science Foundation of China [11604009, 11574025, 11325417, 11674139, 1121403] ; National Science Foundation of China [11604009, 11574025, 11325417, 11674139, 1121403] ; National Scholastic Athletics Foundation [U1530401] ; National Scholastic Athletics Foundation [U1530401] ; National Scholastic Athletics Foundation [U1530401] ; National Scholastic Athletics Foundation [U1530401] ; Future and Emerging Technologies (FET) [618083] ; Future and Emerging Technologies (FET) [618083] ; Future and Emerging Technologies (FET) [618083] ; Future and Emerging Technologies (FET) [618083]
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21928
CollectionSCI期刊论文
Corresponding AuthorChesi, S; Luo, HG (reprint author), Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China.; Luo, HG (reprint author), Lanzhou Univ, Ctr Interdisciplinary Studies, Lanzhou 730000, Gansu, Peoples R China.; Luo, HG (reprint author), Lanzhou Univ, MoE, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China.
Recommended Citation
GB/T 7714
Liu, MX,Chesi, S,Ying, ZJ,et al. Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model[J]. PHYSICAL REVIEW LETTERS,2017,119(22):220601.
APA Liu, MX.,Chesi, S.,Ying, ZJ.,Chen, XS.,Luo, HG.,...&Luo, HG .(2017).Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model.PHYSICAL REVIEW LETTERS,119(22),220601.
MLA Liu, MX,et al."Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model".PHYSICAL REVIEW LETTERS 119.22(2017):220601.
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