The conductivity tensor for the Hubbard model

Authors
Mancini, F Villani, D
Citation
F. Mancini et D. Villani, The conductivity tensor for the Hubbard model, PHYS LETT A, 261(5-6), 1999, pp. 357-364
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
261
Issue
5-6
Year of publication
1999
Pages
357 - 364
Database
ISI
SICI code
0375-9601(19991018)261:5-6<357:TCTFTH>2.0.ZU;2-6
Abstract
A new theoretical analysis of the current-charge and charge-charge propagat ors is presented for the Hubbard model, using the static approximation for the Composite Operator Method. This approximation manifestly preserves a su m rule which governs the single-site dynamics. We compare our results with those obtained by numerical analysis. (C) 1999 Elsevier Science B.V. All ri ghts reserved.