Study of the t-J model in the low-density limit

Authors
Kovacs, E Gulacsi, Z
Citation
E. Kovacs et Z. Gulacsi, Study of the t-J model in the low-density limit, PHIL MAG B, 81(10), 2001, pp. 1557-1564
Citations number
7
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
1557 - 1564
Database
ISI
SICI code
1364-2812(200110)81:10<1557:SOTTMI>2.0.ZU;2-N
Abstract
We present exact results for the T = 0 ground state of the t-J model in one dimension in the low-concentration limit and arbitrary coupling constants. The procedure is based on the construction of the ground-state wavefunctio n in real space by the enumeration of the possible local particle configura tions and taking into account the translational and rotational invariance o f the system. Concrete results are presented for two- and four-particle cas es.