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Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations
Zhang, GM; Yu, L; Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
1998
发表期刊PHYSICAL REVIEW LETTERS
ISSN0031-9007
卷号81期号:19页码:4192-4195
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.
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
关键词Non-fermi-liquid Extended Hubbard-model 2-channel Kondo Model Copper-oxide Model Infinite Dimensions Normal-state Superconductors Behavior Points Phases
学科领域Physics
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收录类别SCI
WOS记录号WOS:000077011000041
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12233
专题理论物理所1978-2010年知识产出
通讯作者Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
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Zhang, GM,Yu, L,Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.. Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations[J]. PHYSICAL REVIEW LETTERS,1998,81(19):4192-4195.
APA Zhang, GM,Yu, L,&Zhang, GM , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China..(1998).Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations.PHYSICAL REVIEW LETTERS,81(19),4192-4195.
MLA Zhang, GM,et al."Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations".PHYSICAL REVIEW LETTERS 81.19(1998):4192-4195.
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