STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY

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	STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY
	LOU, SY; ZHU, YJ; ZHU, YJ , NINGBO NORMAL COLL,DEPT PHYS,NINGBO 315211,PEOPLES R CHINA.
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	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
ISSN号	0253-6102
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.
学科主题	Physics
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/11806]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	ZHU, YJ , NINGBO NORMAL COLL,DEPT PHYS,NINGBO 315211,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	LOU, SY,ZHU, YJ,ZHU, YJ , NINGBO NORMAL COLL,DEPT PHYS,NINGBO 315211,PEOPLES R CHINA.. STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1995,23(1):83-92.
APA	LOU, SY,ZHU, YJ,&ZHU, YJ , NINGBO NORMAL COLL,DEPT PHYS,NINGBO 315211,PEOPLES R CHINA..(1995).STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY.COMMUNICATIONS IN THEORETICAL PHYSICS,23(1),83-92.
MLA	LOU, SY,et al."STRUCTURE PHASE-TRANSITIONS OF THE (D+1)-DIMENSIONAL DOUBLE SINE-GORDON FIELD-THEORY".COMMUNICATIONS IN THEORETICAL PHYSICS 23.1(1995):83-92.