The Effect of a Long-Range Correlated-Hopping Interaction on Bariev Spin Chains

doi:10.3390/e17096044

	The Effect of a Long-Range Correlated-Hopping Interaction on Bariev Spin Chains
	Yang, Tao 1; Wen, Fa-Kai 1; Hao, Kun 1; Cao, Li-Ke 2; Yue, Rui-Hong 3
刊名	ENTROPY
	2015-09-01
卷号	17 页码:6044-6055
关键词	Bariev model long-range interaction twist boundary condition energy spectrum
ISSN号	1099-4300
DOI	10.3390/e17096044
英文摘要	We introduce a long-range particle and spin interaction into the standard Bariev model and show that this interaction is equivalent to a phase shift in the kinetic term of the Hamiltonian. When the particles circle around the chain and across the boundary, the accumulated phase shift acts as a twist boundary condition with respect to the normal periodic boundary condition. This boundary phase term depends on the total number of particles in the system and also the number of particles in different spin states, which relates to the spin fluctuations in the system. The model is solved exactly via a unitary transformation by the coordinate Bethe ansatz. We calculate the Bethe equations and work out the energy spectrum with varying number of particles and spins.
资助项目	Science Foundation of Northwest University[13NW16] ; [NSFC11347025] ; [NSFC11447239] ; [NSFC11275099] ; [NSFC11435006]
WOS关键词	ADIABATIC TRANSPORT-PROPERTIES ; DIMENSIONAL INTEGRABLE MODEL ; OPTICAL CONDUCTIVITY ; BOUNDARY-CONDITIONS ; HUBBARD RINGS ; FERMION MODEL ; FIELDS
WOS研究方向	Physics
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000362513400007
资助机构	Science Foundation of Northwest University
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/40845]
专题	中国科学院近代物理研究所
通讯作者	Yang, Tao
作者单位	1.NW Univ Xian, Inst Modern Phys, Xian 710069, Peoples R China 2.NW Univ Xian, Sch Phys, Xian 710069, Peoples R China 3.Yangzhou Univ, Sch Phys Sci & Technol, Yangzhou 225002, Peoples R China
推荐引用方式 GB/T 7714	Yang, Tao,Wen, Fa-Kai,Hao, Kun,et al. The Effect of a Long-Range Correlated-Hopping Interaction on Bariev Spin Chains[J]. ENTROPY,2015,17:6044-6055.
APA	Yang, Tao,Wen, Fa-Kai,Hao, Kun,Cao, Li-Ke,&Yue, Rui-Hong.(2015).The Effect of a Long-Range Correlated-Hopping Interaction on Bariev Spin Chains.ENTROPY,17,6044-6055.
MLA	Yang, Tao,et al."The Effect of a Long-Range Correlated-Hopping Interaction on Bariev Spin Chains".ENTROPY 17(2015):6044-6055.