Duality in the Kondo model and perturbative approach to strong coupling theory
Aono, Tomosuke
Original · EN
We investigate the duality in the Kondo model. Starting from the s-d model with the coupling constant J, the strong coupling model with the constant of 1/J is identified. The model shows the unitary limit of the conductance, G=2 e²/h at zero temperature. The perturbation theory of the model gives qualitative agreement with the results of numerical renormalization group and Bethe ansatz near T=Tₖ.
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