Study of two magnetic impurities in a Fermi gas

B. A. Jones; C. M. Varma

doi:10.1103/PhysRevLett.58.843

Study of two magnetic impurities in a Fermi gas

B. A. Jones and C. M. Varma

Phys. Rev. Lett. 58, 843 – Published 2 March 1987

Abstract

The problem of two magnetic moments in a Fermi gas is studied with the numerical renormalization group used by Wilson for the Kondo problem. Even when the interaction energy of the moments is much smaller than the Kondo energy, the asymptotic low-temperature behavior is that of a correlated Kondo effect. An effective Hamiltonian for the low-temperature properties, which are nonuniversal, is deduced.

Received 18 August 1986

DOI:https://doi.org/10.1103/PhysRevLett.58.843

Authors & Affiliations

B. A. Jones

AT&T Bell Laboratories, Murray Hill, New Jersey 07974; Laboratory for Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853; and Institute for Theoretical Physics, University of California, Santa Barbara, California 93106

C. M. Varma