Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 90, Issue 2, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.90.024708
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Funding
- Investissements d'Avenir program
- EIPHI Graduate School [ANR-17EURE-0002]
- Project ISITEBFC [ANR-15-IDEX-0003]
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The G-Kondo effect, in which the localized impurity transforms under a generic symmetry group G, was explored. A one-dimensional effective model coupled with the impurity was derived, and thermodynamic properties were studied using the boundary conformal field theory approach. Special focus was placed on impurity entropy at the conformal fixed point, as well as the low temperature behavior of specific heat and susceptibility. The Wilson ratio was also considered based on these results, along with the case of exceptional group symmetry.
We explore the Kondo effect incorporating the localized impurity transforming under generic symmetry group G, that we call the G-Kondo effect. We derive the one-dimensional effective model coupled with the impurity, and studied the thermodynamic properties based on the boundary conformal field theory approach. We in particular study the impurity entropy at the conformal fixed point, and the low temperature behavior of the specific heat and the susceptibility. We also consider the Wilson ratio based on these results, and mention the case with exceptional group symmetry.
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