Quantum Monte Carlo simulations of the Hubbard model containing off-diagonal hopping

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	Quantum Monte Carlo simulations of the Hubbard model containing off-diagonal hopping
	Lu, WG ; Shu, ZH ; Dong, JM ; Wang, EG
刊名	PHYSICAL REVIEW B
	2002
卷号	66 期号:24
关键词	BOSON-FERMION SYSTEMS MEAN-FIELD THEORY SUPEREXCHANGE MECHANISM GROUND-STATES TRANSITION PHYSICS SUPERCONDUCTIVITY MANGANITES CHARGE OXIDES
ISSN号	1098-0121
通讯作者	Lu, WG (reprint author), Nanjing Univ, Grp Computat Condensed Matter Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.
中文摘要	We extend a Quantum Monte Carlo (QMC) algorithm to the Hubbard model containing bond-dependent off-diagonal hoppings, which describes the manganites and other similar systems, such as systems with spin-flip hoppings. To show correctness of this extension, we detect two simple examples of one-dimensional chains. The first one is half-filled and the hopping matrixes between arbitrary nearest neighboring pairs are uniform, i.e., t(i,i+1)=t(i+1,i+2) (i=1,2,3,...). The other one is quarter-filled and the hopping matrixes alternate every four lattice constants with t(i,i+1)=t(i+1,i+2)not equalt(i+2,i+3)=t(i+3,i+4) (i=1,5,9,...). Results of the two examples are reasonable.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/51696]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Lu, WG,Shu, ZH,Dong, JM,et al. Quantum Monte Carlo simulations of the Hubbard model containing off-diagonal hopping[J]. PHYSICAL REVIEW B,2002,66(24).
APA	Lu, WG,Shu, ZH,Dong, JM,&Wang, EG.(2002).Quantum Monte Carlo simulations of the Hubbard model containing off-diagonal hopping.PHYSICAL REVIEW B,66(24).
MLA	Lu, WG,et al."Quantum Monte Carlo simulations of the Hubbard model containing off-diagonal hopping".PHYSICAL REVIEW B 66.24(2002).