Topological Approach to Luttinger's Theorem and the Fermi Surface of a Kondo Lattice
Abstract
A nonperturbative 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 completely localized spins contribute to the Fermi sea volume as electrons, whenever the system can be described as a Fermi liquid.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2000
- DOI:
- 10.1103/PhysRevLett.84.3370
- arXiv:
- arXiv:cond-mat/0002392
- Bibcode:
- 2000PhRvL..84.3370O
- Keywords:
-
- Condensed Matter - Strongly Correlated Electrons;
- Condensed Matter - Statistical Mechanics
- E-Print:
- 4 pages in REVTEX (no figure), accepted for publication in Phys. Rev. Letters