Quantum-phase transition in a XY model

被引：37
|
作者：
Pires, A. S. T. [1 ]
机构：
[1] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2007年 / 373卷
关键词：
quantum-phase transition; XY model; one-dimensional;
D O I：
10.1016/j.physa.2006.08.004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper we study quantum-phase transition in the one-dimensional XY model with an XY easy-plane single ion anisotropy. We use the path-integral formalism, but consider the effect of quantum fluctuations, which renormalize the parameters of the system, using the self-consistent harmonic approximation. We show that the quantum fluctuations increase the effective coupling constant of the model. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：387 / 391
页数：5
相关论文
共 50 条
  • [31] Quantum-phase properties of the Kerr couplers
    Fiurásek, J
    Krepelka, J
    Perina, J
    [J]. OPTICS COMMUNICATIONS, 1999, 167 (1-6) : 115 - 124
  • [32] Hamiltonian dynamics and the phase transition of the XY model
    Leoncini, X
    Verga, AD
    Ruffo, S
    [J]. PHYSICAL REVIEW E, 1998, 57 (06): : 6377 - 6389
  • [33] Geometric phase and quantum phase transition in an inhomogeneous periodic XY spin-1/2 model
    Ma, Yu-Quan
    Chen, Shu
    [J]. PHYSICAL REVIEW A, 2009, 79 (02):
  • [34] NEGATIVITY AND GEOMETRIC QUANTUM DISCORD AS INDICATORS OF QUANTUM PHASE TRANSITION IN THE XY MODEL WITH DZYALOSHINSKII-MORIYA INTERACTION
    Xu, Shuai
    Song, Xue Ke
    Ye, Liu
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2013, 27 (16):
  • [35] Metal to Insulator Quantum-Phase Transition in Few-Layered ReS2
    Pradhan, Nihar R.
    McCreary, Amber
    Rhodes, Daniel
    Lu, Zhengguang
    Feng, Simin
    Manousakis, Efstratios
    Smirnov, Dmitry
    Namburu, Raju
    Dubey, Madan
    Walker, Angela R. Hight
    Terrones, Humberto
    Terrones, Mauricio
    Dobrosavljevic, Vladimir
    Balicas, Luis
    [J]. NANO LETTERS, 2015, 15 (12) : 8377 - 8384
  • [36] Homodyne measurement of exponential phase momenta for quantum-phase reconstruction
    Friedrich-Schiller-Universitat Jena, Jena, Germany
    [J]. Opt Commun, 4-6 (289-292):
  • [37] Quantum phase transition in the two-dimensional XY model with single-ion anisotropy
    Pires, A. S. T.
    Gouvea, M. E.
    [J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2009, 388 (01) : 21 - 27
  • [38] Characterization of quantum phase transition in the XY model with multipartite correlations and Bell-type inequalities
    Sun, Zhao-Yu
    Wu, Yu-Yin
    Xu, Jian
    Huang, Hai-Lin
    Zhan, Bi-Fu
    Wang, Bo
    Duan, Cheng-Bo
    [J]. PHYSICAL REVIEW A, 2014, 89 (02):
  • [39] PERFORMANCE-MEASURES OF QUANTUM-PHASE MEASUREMENT
    HRADIL, Z
    [J]. PHYSICAL REVIEW A, 1992, 46 (05): : R2217 - R2220
  • [40] An Elementary Proof of Phase Transition in the Planar XY Model
    Diederik van Engelenburg
    Marcin Lis
    [J]. Communications in Mathematical Physics, 2023, 399 : 85 - 104
12345