Equilibrium Fermi-liquid coefficients for the fully screened N-channel Kondo model

Article

关键词: RENORMALIZATION-GROUP;    RESISTANCE;    FIELD;   

DOI  :  10.1103/PhysRevB.89.195131

来源: SCIE

【 摘 要 】

We analytically and numerically compute three equilibrium Fermi-liquid coefficients of the fully screened N-channel Kondo model, namely c(B), c(T), and c(e), characterizing the magnetic field and temperature dependence of the resisitivity, and the curvature of the equilibrium Kondo resonance, respectively. We present a compact, unified derivation of the N dependence of these coefficients, combining elements from various previous treatments of this model. We numerically compute these coefficients using the numerical renormalization group, with non-Abelian symmetries implemented explicitly, finding agreement with Fermi-liquid predictions on the order of 5% or better.

【 授权许可】

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