Spin-flavor separation and non-Fermi-liquid behavior in the multichannel Kondo problem: A large-[ital N] approach
- Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)
- Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08855 (United States)
We present an analytical solution of a SU([ital N])[times]SU([ital M]) generalization of the multichannel single-impurity Kondo model in the limit [ital N][r arrow][infinity], [ital M][r arrow][infinity], with [gamma]=[ital M]/[ital N] fixed. Non-Fermi-liquid behavior of the single electron Green function and of the local spin and flavor susceptibilities occurs in both regimes, [ital N][le][ital M] and [ital N][gt][ital M], with leading critical exponents [ital identical] to those found in the conformal field theory solution for [ital all] [ital N] and [ital M] (with [ital M][ge]2). We explain this remarkable agreement and connect it to spin-flavor separation,'' the essential feature of the non-Fermi-liquid, fixed point.
- OSTI ID:
- 6036143
- Journal Information:
- Physical Review Letters; (United States), Vol. 71:10; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
KONDO EFFECT
ANALYTICAL SOLUTION
ANTIFERROMAGNETISM
CONFORMAL INVARIANCE
ELECTRONIC STRUCTURE
GREEN FUNCTION
SU GROUPS
FUNCTIONS
INVARIANCE PRINCIPLES
LIE GROUPS
MAGNETISM
SYMMETRY GROUPS
665430* - Other Topics in Quantum Fluids & Solids- (1992-)