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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4568
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dc.contributor.authorDas, Jayajit-
dc.contributor.authorRao, Madan-
dc.date.accessioned2012-05-31T08:44:43Z-
dc.date.available2012-05-31T08:44:43Z-
dc.date.issued1998-
dc.identifier.citationPhysical Review E, 1998, V.57, p5069en
dc.identifier.issn1539-3755-
dc.identifier.issn1550-2376 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/4568-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractWe study the dynamics of ordering of a nonconserved Heisenberg magnet. The dynamics consists of two parts - an irreversible dissipation into a heat bath and a reversible precession induced by a torque due to the local molecular field. For quenches to zero temperature, we provide convincing arguments, both numerically (Langevin simulation) and analytically (approximate closure scheme due to Mazenko), that the torque is irrelevant at late times. We subject the Mazenko closure scheme to systematic numerical tests. Such an analysis, carried out on a vector order parameter, shows that the closure scheme performs respectably well. For quenches to Tc, we show, to O(ɛ2), that the torque is irrelevant at the Wilson-Fisher fixed point.en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttp://arxiv.org/abs/cond-mat/9709307en
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevE.57.5069en
dc.relation.urihttp://adsabs.harvard.edu/abs/1998PhRvE..57.5069Den
dc.rights1998, American Physical Societyen
dc.titleDynamics of ordering of heisenberg spins with torque: nonconserved caseen
dc.typeArticleen
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