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题名: Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations
作者: Zhang, GM ;  Yu, L
刊名: PHYSICAL REVIEW LETTERS
出版日期: 1998
卷号: 81, 期号:19, 页码:4192-4195
关键词: NON-FERMI-LIQUID ;  EXTENDED HUBBARD-MODEL ;  2-CHANNEL KONDO MODEL ;  COPPER-OXIDE MODEL ;  INFINITE DIMENSIONS ;  NORMAL-STATE ;  SUPERCONDUCTORS ;  BEHAVIOR ;  POINTS ;  PHASES
学科分类: Physics
通讯作者: Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
部门归属: Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; Int Ctr Theoret Phys, I-34100 Trieste, Italy; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ London Sch Pharm, London, England
英文摘要: We consider the symmetric single-impurity Anderson model in the presence of pairing fluctuations. In the isotropic limit, the degrees of freedom of the local impurity are separated into hybridizing and nonhybridizing modes. The self-energy for the hybridizing modes can be obtained exactly, leading to two subbands centered at +/- U/2. For the nonhybridizing modes, the second order perturbation yields a singular resonance of the marginal Fermi liquid form. By multiplicative renormalization, the self-energy is derived exactly, showing that the resonance is pinned at the Fermi level, while its strength is weakened by renormalization.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000077011000041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12233
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:
Zhang, GM,Yu, L. Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations[J]. PHYSICAL REVIEW LETTERS,1998,81(19):4192-4195.
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