Non-Abelian vortices in the emergent U(2) gauge theory of the Hubbard model

	Non-Abelian vortices in the emergent U(2) gauge theory of the Hubbard model
	Huo, QH; Jiang, YG; Wang, RZ; Yan, H; Jiang YG(姜云国)
刊名	EPL
	2013
卷号	101 期号:2 页码:27001
英文摘要	By the spin-fermion formula, the Hubbard model on the honeycomb lattice is represented by a U(2) gauge theory using the mean-field method; non-Abelian vortex solutions are constructed based on this theory. The quantization condition shows that the magnetic flux quanta are half-integer. There are 2k bosonic zero modes for the k-winding vortex. For the fermions, there are 2 zero-energy states (ZESs) corresponding to the single elementary vortex. In the vortex core and on the edge, the system is in the semi-metal phase with a spin gap and in the insulator phase with a Neel order, and can be mapped to the superconductor in the class A and CI, respectively. Copyright (C) EPLA, 2013
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000314677100024
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224517]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Huo, QH,Jiang, YG,Wang, RZ,et al. Non-Abelian vortices in the emergent U(2) gauge theory of the Hubbard model[J]. EPL,2013,101(2):27001.
APA	Huo, QH,Jiang, YG,Wang, RZ,Yan, H,&姜云国.(2013).Non-Abelian vortices in the emergent U(2) gauge theory of the Hubbard model.EPL,101(2),27001.
MLA	Huo, QH,et al."Non-Abelian vortices in the emergent U(2) gauge theory of the Hubbard model".EPL 101.2(2013):27001.