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题名: Analytical results for a hole in an antiferromagnet
作者: Li, YM ;  dAmbrumenil, N ;  Yu, L ;  Su, ZB
刊名: PHYSICAL REVIEW B
出版日期: 1996
卷号: 53, 期号:22, 页码:14717-14720
关键词: 2-DIMENSIONAL QUANTUM ANTIFERROMAGNET ;  T-J MODEL ;  SINGLE-HOLE ;  SPECTRAL-FUNCTION ;  HUBBARD ANTIFERROMAGNET ;  DYNAMIC PROPERTIES ;  MOTION ;  STATE
学科分类: Physics
通讯作者: Li, YM , UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND.
部门归属: QUFU NORMAL UNIV,DEPT PHYS,SHANDONG,PEOPLES R CHINA; INT CTR THEORET PHYS,I-34100 TRIESTE,ITALY; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: The Green's function for a hole moving in an antiferromagnet is derived analytically in the long-wavelength limit. We find that the infrared divergence is eliminated in two and higher dimensions so that the quasiparticle weight is finite. Our results also suggest that the hole motion is polaronic in nature with a bandwidth proportional to t(2)/J exp[-c(t/J)(2)] (c is a constant) for J/t greater than or equal to 0.5. The connection of the long-wavelength approximation to the first-order approximation in the cumulant expansion is also clarified.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:A1996UR04700006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12628
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Li, YM,dAmbrumenil, N,Yu, L,et al. Analytical results for a hole in an antiferromagnet[J]. PHYSICAL REVIEW B,1996,53(22):14717-14720.
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