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Hyperelliptic curves for multi-channel quantum wires and the multi-channel Kondo problem

P. Fendley·H. Saleur
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Abstract

We study the current in a multi-channel quantum wire and the magnetization in the multi-channel Kondo problem. We show that at zero temperature they can be written simply in terms of contour integrals over a (two-dimensional) hyperelliptic curve. This allows one to easily demonstrate the existence of weak-coupling to strong-coupling dualities. In the Kondo problem, the curve is the same for under- and over-screened cases; the only change is in the contour.

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BibTeXRIS

P. Fendley, H. Saleur. 1998-09-18. Hyperelliptic curves for multi-channel quantum wires and the multi-channel Kondo problem. https://doi.org/10.1103/physrevb.60.11432

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