Anomalous resonance of the symmetric single-impurity Anderson model in the presence of pairing fluctuations

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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.
刊名	PHYSICAL REVIEW LETTERS
	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
ISSN号	0031-9007
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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000077011000041
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12233]
专题	理论物理研究所_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.
推荐引用方式 GB/T 7714	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.