Artículos de revistas
Extending the use of canonical and microcanonical Monte Carlo algorithms to spin models
Fecha
2009Registro en:
COMPUTER PHYSICS COMMUNICATIONS, v.180, n.9, p.1434-1441, 2009
0010-4655
10.1016/j.cpc.2009.03.001
Autor
Santos, Carlos Eduardo Fiore dos
Oliveira, Mario Jose de
Institución
Resumen
We describe the canonical and microcanonical Monte Carlo algorithms for different systems that can be described by spin models. Sites of the lattice, chosen at random, interchange their spin values, provided they are different. The canonical ensemble is generated by performing exchanges according to the Metropolis prescription whereas in the microcanonical ensemble, exchanges are performed as long as the total energy remains constant. A systematic finite size analysis of intensive quantities and a comparison with results obtained from distinct ensembles are performed and the quality of results reveal that the present approach may be an useful tool for the study of phase transitions, specially first-order transitions. (C) 2009 Elsevier B.V. All rights reserved.