Topological approach to Luttinger's theorem and the Fermi surface of a Kondo lattice

Details Topological approach to Luttinger's theorem and the Fermi surface of a Kondo lattice Topological approach to Luttinger's theorem and the Fermi surface of a Kondo lattice

2000-02-25

arxiv.org/abs/cond-mat/0002392v1

Phys. Rev. Lett. 84, 3370 (2000)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages in REVTEX (no figure), accepted for publication in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.84.3370

A non-perturbative proof of Luttinger's theorem, based on a topological
argument, is given for Fermi liquids in arbitrary dimensions. Application to
the Kondo lattice shows that even the completely localized spins do contribute
to the Fermi sea volume as electrons, whenever the system can be described as a
Fermi liquid.

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