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Analytical results for the Coqblin-Schrieffer model with generalized magnetic fields

V. V. Bazhanov·S. L. Lukyanov·A. M. Tsvelik
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Abstract

Using the approach alternative to the traditional Thermodynamic Bethe Ansatz, we derive analytical expressions for the free energy of Coqblin-Schrieffer model with arbitrary magnetic and crystal fields. In Appendix we discuss two concrete examples including the field generated crossover from the SU(4) to the SU(2) symmetry in the SU(4)-symmetric model.

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V. V. Bazhanov, S. L. Lukyanov, A. M. Tsvelik. 2003-05-11. Analytical results for the Coqblin-Schrieffer model with generalized magnetic fields. https://doi.org/10.1103/physrevb.68.094427

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