Numerical renormalization group study of two-level Kondo effect: Discovery of new fixed point

Details Numerical renormalization group study of two-level Kondo effect: Discovery of new fixed point Numerical renormalization group study of two-level Kondo effect: Discovery of new fixed point

2003-03-17

arxiv.org/abs/cond-mat/0303299v1

Acta Phys. Pol. B vol.22 (2003), pp.1331-1334

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures, SCES'02 at Krakow

Scientific paper

The model of two-level Kondo effect is studied by the Wilson numerical
renormalization group method. It is shown that there exist a new type of
weak-coupling fixed point other than the strong-coupling fixed point found by
Vladar and Zawadowski two decades ago by means of the one-loop and two-loop
renormalization group methods.

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