Exact results for the one-dimensional periodic Anderson model at finite U

Authors
Orlik, I Gulacsi, Z
Citation
I. Orlik et Z. Gulacsi, Exact results for the one-dimensional periodic Anderson model at finite U, PHIL MAG B, 81(10), 2001, pp. 1587-1596
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICSELECTRONIC OPTICAL AND MAGNETIC PROPERTIES
ISSN journal
13642812 → ACNP
Volume
81
Issue
10
Year of publication
2001
Pages
1587 - 1596
Database
ISI
SICI code
1364-2812(200110)81:10<1587:ERFTOP>2.0.ZU;2-A
Abstract
We present exact results for the periodic Anderson model for finite Hubbard interaction 0 < U < infinity on certain restricted domains of the model's phase diagram, in d = 1 dimension. Decomposing the Hamiltonian into positiv e semidefinite terms we find two quantum states to be ground states; a comp letely localized ground state and a non-localized ground state. The ground- state energy and several ground-state expectation values were calculated.