SCHWINGER-BOSON STUDIES OF THE SINGLE HOLE MOTION IN A 2D QUANTUM ANTIFERROMAGNET

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	WU, CQ; SU, ZB; YU, L; WU, CQ , FUDAN UNIV,TD LEE PHYS LAB,SHANGHAI 200433,PEOPLES R CHINA.
	SCHWINGER-BOSON STUDIES OF THE SINGLE HOLE MOTION IN A 2D QUANTUM ANTIFERROMAGNET
发表期刊	INTERNATIONAL JOURNAL OF MODERN PHYSICS B
关键词	Mean Field-theory T-j Model Spectral-function Hubbard-model Lattice Superconductivity
摘要	Within the Schwinger-boson approach for the t-J model, the single hole problem in a two-dimensional quantum antiferromagnet is studied by using the quantum Bogoliubovde Gennes formalism which treats the distortion of the spin background and quantum spin fluctuations on an equal footing. Several self-trapped localized hole states are found in the distorted spin-background as in the case of an anisotropic Heisenberg model. These localized hole states survive at finite temperatures when the antiferromagnetic order becomes short-ranged. The energy separation between the two lowest states is reduced by considering the spin-background distortion, but it remains finite.
	1994
ISSN	0217-9792
卷号	8 期号:27 页码:3843-3858
学科领域	Physics
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/11826
专题	理论物理所科研产出_SCI论文
通讯作者	WU, CQ , FUDAN UNIV,TD LEE PHYS LAB,SHANGHAI 200433,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	WU, CQ,SU, ZB,YU, L,et al. SCHWINGER-BOSON STUDIES OF THE SINGLE HOLE MOTION IN A 2D QUANTUM ANTIFERROMAGNET[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,1994,8(27):3843-3858.
APA	WU, CQ,SU, ZB,YU, L,&WU, CQ , FUDAN UNIV,TD LEE PHYS LAB,SHANGHAI 200433,PEOPLES R CHINA..(1994).SCHWINGER-BOSON STUDIES OF THE SINGLE HOLE MOTION IN A 2D QUANTUM ANTIFERROMAGNET.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,8(27),3843-3858.
MLA	WU, CQ,et al."SCHWINGER-BOSON STUDIES OF THE SINGLE HOLE MOTION IN A 2D QUANTUM ANTIFERROMAGNET".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 8.27(1994):3843-3858.

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