Asymptotically exact solution of the multi-channel resonant-level model

Details Asymptotically exact solution of the multi-channel resonant-level model Asymptotically exact solution of the multi-channel resonant-level model

1994-01-26

arxiv.org/abs/cond-mat/9401059v1

Physics

Condensed Matter

11 pages, one postscript (attached), to appear in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.49.7759

An asymptotically exact partition function of the multi-channel resonant-level model is obtained through Tomonaga-Luttinger bosonization. A Fermi-liquid vs non-Fermi-liquid transition, resulting from a competition between the Kondo and X-ray edge physics, is elucidated explicitly via the renormalization group theory. In the strong-coupling limit, the model is renormalized to the Toulouse limit.

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