 Off equilibrium dynamics in the 2d-XY systemS. Abriet and D. Karevski () The European Physical Journal B: Condensed Matter and Complex Systems, 2004, vol. 37, issue 1, 47-53 Abstract: We study the non-equilibrium time evolution of the classical XY spin model in two dimensions. The two-time autocorrelation and linear response functions are considered for systems initially prepared in a high temperature state and in a completely ordered state. After a quench into the critical phase, we use Monte Carlo simulations to determine the time-evolution of these quantities, and we deduce the temperature dependence of the slope of the parametric plot susceptibility/correlation in the asymptotic regime. This slope is usually identified with the infinite fluctuation-dissipation ratio, which measures the extent of violation of the equilibrium fluctuation-dissipation theorem. However, a direct measure of this ratio leads to a vanishing value. Copyright EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2004 Date: 2004 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:spr:eurphb:v:37:y:2004:i:1:p:47-53:10.1140/epjb/e2004-00029-9 Ordering information: This journal article can be ordered from DOI: 10.1140/epjb/e2004-00029-9 Access Statistics for this article The European Physical Journal B: Condensed Matter and Complex Systems is currently edited by P. Hänggi and Angel Rubio More articles in The European Physical Journal B: Condensed Matter and Complex Systems from Springer, EDP Sciences |
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