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	Effective potential for composite operators and for an auxiliary scalar field in a nambu-jona-lasinio model
	Zhou, BR
刊名	Physical review d
	2004-03-01
卷号	69期号:6页码:6
ISSN号	1550-7998
DOI	10.1103/physrevd.69.065007
通讯作者	Zhou, br()
英文摘要	We derive the effective potentials for composite operators in a nambu-jona-lasinio model at zero and finite temperature and show that in each case they are equivalent to the corresponding effective potentials based on an auxiliary scalar field. both effective potentials could lead to the same possible spontaneous breaking and restoration of symmetries including chiral symmetry if the momentum cutoff in the loop integrals is large enough. and can be transformed to each other when the schwinger-dyson equation of the dynamical fermion mass from the fermion-antifermion vacuum (or thermal) condensates is used. the results also generally indicate that two effective potentials with the same single order parameter but rather different mathematical expressions can still be considered physically equivalent if the schwinger-dyson equatiou corresponding to the extreme value conditions of the two potentials have the same form.
WOS关键词	ELECTROWEAK SYMMETRY RESTORATION ; FINITE-TEMPERATURE ; PHASE-TRANSITIONS ; ORDER-PARAMETER ; DYNAMICAL MODEL ; HIGH-DENSITY ; REAL-TIME ; BREAKING ; SUPERCONDUCTIVITY ; CONDENSATE
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000221258900079
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376925
专题	中国科学院大学
通讯作者	Zhou, BR
作者单位	1.Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100039, Peoples R China 2.CCAST, World Lab, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhou, BR. Effective potential for composite operators and for an auxiliary scalar field in a nambu-jona-lasinio model[J]. Physical review d,2004,69(6):6.
APA	Zhou, BR.(2004).Effective potential for composite operators and for an auxiliary scalar field in a nambu-jona-lasinio model.Physical review d,69(6),6.
MLA	Zhou, BR."Effective potential for composite operators and for an auxiliary scalar field in a nambu-jona-lasinio model".Physical review d 69.6(2004):6.

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