Mass-gap in the compactified principal chiral model

doi:10.1103/PhysRevD.98.085016

	Mass-gap in the compactified principal chiral model
	Evslin, Jarah 1,2; Zhang, Baiyang 3
刊名	PHYSICAL REVIEW D
	2018-10-18
卷号	98
ISSN号	2470-0010
DOI	10.1103/PhysRevD.98.085016
英文摘要	If the space of minima of the effective potential of a weakly coupled 2d quantum field theory is not connected, then a mass-gap will be nonperturbatively generated. As examples, we consider two sigma models compactified on a small circle with twisted boundary conditions. In the compactified CP1 model, the vacuum manifold consists of two points and the mass-gap is nonperturbative. In the case of the compactified SU(2) principal chiral model, the vacuum manifold is a single circle and the mass-gap is perturbative.
资助项目	NSFC MianShang[11875296] ; NSFC MianShang[11675223]
WOS关键词	NONLINEAR SIGMA-MODEL ; INSTANTONS
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000447624000003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64396]
专题	中国科学院近代物理研究所
通讯作者	Evslin, Jarah
作者单位	1.Inst Modern Phys, NanChangLu 509, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, YuQuanLu 19A, Beijing 100049, Peoples R China 3.Wigner Res Ctr, POB 49, H-1525 Budapest 114, Hungary
推荐引用方式 GB/T 7714	Evslin, Jarah,Zhang, Baiyang. Mass-gap in the compactified principal chiral model[J]. PHYSICAL REVIEW D,2018,98.
APA	Evslin, Jarah,&Zhang, Baiyang.(2018).Mass-gap in the compactified principal chiral model.PHYSICAL REVIEW D,98.
MLA	Evslin, Jarah,et al."Mass-gap in the compactified principal chiral model".PHYSICAL REVIEW D 98(2018).