Topological Approach to Luttinger's Theorem and the Fermi Surface of a Kondo Lattice
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- 10 April 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (15) , 3370-3373
- https://doi.org/10.1103/physrevlett.84.3370
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.Keywords
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