Mapping of the Anisotropic Two-channel Anderson Model onto a Fermi-Majorana bi-Resonant Level Model

Abstract

We establish the correspondence between an extended version of the two-channel Anderson model and a particular type of bi-resonant level model. For certain values of the parameters the new model becomes quadratic. We calculate in closed form the entropy and impurity occupation as functions of temperature and identify the different physical energy scales of the problem. We show how, as the temperature goes to zero, the model approaches a universal line of fixed points non-Fermi liquid in nature.

arXiv comment4 pages, 3 figures

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• Bosonization approach to the mixed-valence two-channel Kondo problem
• Systematic compactification of the two-channel Kondo model. II. Comparative study of scaling and universality
• Systematic compactification of the two-channel Kondo model. I. Consistent bosonization-debosonization approach and exact comparisons
• Systematic compactification of the two-channel Kondo model. III. Extended field-theoretic renormalization group analysis
• Many-flavor electron gas approach to electron-hole drops
• Bosonization solution of the Kondo lattice in a Luttinger liquid
• Diffusion Monte Carlo study of a valley degenerate electron gas and application to quantum dots