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Journal of High Energy Physics

, 2019:66 | Cite as

Quantum impurity models from conformal field theory

  • Ying-Hai WuEmail author
  • Hong-Hao Tu
Open Access
Regular Article - Theoretical Physics
  • 26 Downloads

Abstract

The coupling between localized magnetic moments and itinerant electrons presents a plethora of interesting physics. The low-energy physics of some quantum impurity systems can be described using conformal field theory (CFT). In this paper, the connection between quantum impurity models and CFT is further strengthened as we construct a class of exactly solvable models with ground states given by CFT correlators. The method developed here is completely analytical and can be applied to fermions with an arbitrary number of colors and multiple impurities. Numerical calculations are performed to characterize certain aspects of our models for which we do not have analytical results.

Keywords

Conformal Field Theory Field Theories in Lower Dimensions 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  1. 1.School of Physics and Wuhan National High Magnetic Field CenterHuazhong University of Science and TechnologyWuhanChina
  2. 2.Institut für Theoretische PhysikTechnische Universität DresdenDresdenGermany

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