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题名: STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY
作者: ZHU, YJ ;  LOU, SY
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 1995
卷号: 23, 期号:1, 页码:83-92
关键词: CANTED ANTI-FERROMAGNET ;  FINITE-TEMPERATURE ;  SOLITON-SOLUTIONS ;  STATISTICAL-MECHANICS ;  QUANTUM FLUCTUATIONS ;  VACUUM POLARIZATION ;  NONLINEAR EQUATIONS ;  PHI-4 FIELD ;  MODEL ;  BEHAVIOR
学科分类: Physics
通讯作者: ZHU, YJ , NINGBO NORMAL COLL,DEPT PHYS,NINGBO 315211,PEOPLES R CHINA.
部门归属: FUDAN UNIV,FUDAN TD LEE PHYS LAB,SHANGHAI 200433,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: Using the thermal coherent state approach, we investigate the finite temperature quantum double sine-Gordon (DsG) field theory. From the stability conditions of the vacuum states of effective potential, the exact soliton-like solution of the field equation and the resemblance between the DsG model and lambda phi(4) model, we show that there exist two types of structure phase transitions among four structures of the (D+1)-dimensional DsG model similar to the symmetry restored phase transition of lambda phi(4) model. For the first type of phase transition, the small kink-like solutions will disappear at the critical temperature while the large kink-like solutions will be changed continuously at the critical temperature. For the second type of the phase transitions, the metastable localized soliton-like solution will disappear, while the stable kink-like solution exists for all the temperatures and their exact form is also independent of the temperature being under or over the critical temperature.
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/11806
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
ZHU, YJ,LOU, SY. STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1995,23(1):83-92.
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