Show simple item record

dc.contributor.authorFernandes, Henrique Almeidapt_BR
dc.contributor.authorSilva, Roberto dapt_BR
dc.contributor.authorCaparica, Álvaro de Almeidapt_BR
dc.contributor.authorFelício, José Roberto Drugovich dept_BR
dc.date.accessioned2017-09-28T02:27:42Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn1539-3755pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/168954pt_BR
dc.description.abstractWe investigate the short-time universal behavior of the two-dimensional Ashkin-Teller model at the Baxter line by performing time-dependent Monte Carlo simulations. First, as preparatory results, we obtain the critical parameters by searching the optimal power-law decay of the magnetization. Thus, the dynamic critical exponents θm and θp, related to the magnetic and electric order parameters, as well as the persistence exponent θg, are estimated using heat-bath Monte Carlo simulations. In addition, we estimate the dynamic exponent z and the static critical exponents β and ν for both order parameters. We propose a refined method to estimate the static exponents that considers two different averages: one that combines an internal average using several seeds with another, which is taken over temporal variations in the power laws.Moreover, we also performed the bootstrapping method for a complementary analysis. Our results show that the ratio β/ν exhibits universal behavior along the critical line corroborating the conjecture for both magnetization and polarization.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. E, Statistical, nonlinear, and soft matter physics. Melville. Vol. 95, no. 4 (Apr. 2017), 042105, 14 p.pt_BR
dc.rightsOpen Accessen
dc.subjectMétodo de Monte Carlopt_BR
dc.subjectPontos criticospt_BR
dc.subjectModelo de isingpt_BR
dc.titleNonequilibrium critical dynamics of the two-dimensional Ashkin-Teller model at the Baxter linept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001025549pt_BR
dc.type.originEstrangeiropt_BR


Files in this item

Thumbnail
   

This item is licensed under a Creative Commons License

Show simple item record