Spatial decay of the single-particle density matrix in tight-binding metals: Analytic results in two dimensions
- 4 December 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 66 (23) , 233101
- https://doi.org/10.1103/physrevb.66.233101
Abstract
Analytical results for the asymptotic spatial decay of the density matrix in the tight-binding model of the two-dimensional metal are presented. In various dimensions D, it is found analytically and numerically that the density matrix decays with distance according to the power law
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