Broad histogram method for multiparametric Hamiltonians

Authors
Lima, AR de Oliveira, PMC Penna, TJP
Citation
Ar. Lima et al., Broad histogram method for multiparametric Hamiltonians, SOL ST COMM, 114(8), 2000, pp. 447-452
Citations number
38
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
114
Issue
8
Year of publication
2000
Pages
447 - 452
Database
ISI
SICI code
0038-1098(2000)114:8<447:BHMFMH>2.0.ZU;2-S
Abstract
We extended the Broad Histogram Method in order to obtain spectral degenera cies for systems with multiparametric Hamiltonians. As examples, we obtaine d the critical lines for the square lattice Ising model with nearest- and n ext-nearest-neighbor interactions and the antiferromagnetic Ising model in an external field. For each system, the entire critical line is obtained us ing data from a single computer run. We also discuss the accuracy and effic iency of our method. (C) 2000 Elsevier Science Ltd. All rights reserved.