Work

Quantum impurities in channel mixing baths

Year: 2016

Type: article

Abstract: We propose a versatile strategy for numerical renormalization group (NRG) solution of general channel-mixing Kondo and Anderson impurity models beyond previous reach. We illustrate the strategy by investigating the quantum phase transitions in models of Anderson impurities coupled to $s$- and $d$-wave superconducting baths. We discuss the effects of nontrivial channel-mixing in such models. Our strategy opens the door toward broad applications of NRG as impurity solver in cluster dynamical mean field theory for strongly correlated electron systems.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.93.035102

Authors: Jin-Guo Liu, Da Wang, Qiang-Hua Wang

Institutions: National Laboratory of Solid State Microstructures, Nanjing University, Collaborative Innovation Center of Advanced Microstructures

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: National Natural Science Foundation of China

Awards: G4442738192, G476766649