Ensemble inequivalence in a mean-field XY model with ferromagnetic and nematic couplings
dc.contributor.author | Pikovsky, Arkady | pt_BR |
dc.contributor.author | Gupta, Shamik | pt_BR |
dc.contributor.author | Teles, Tarcisio Nunes | pt_BR |
dc.contributor.author | Benetti, Fernanda Pereira da Cruz | pt_BR |
dc.contributor.author | Pakter, Renato | pt_BR |
dc.contributor.author | Levin, Yan | pt_BR |
dc.contributor.author | Ruffo, Stefano | pt_BR |
dc.date.accessioned | 2015-03-26T01:58:33Z | pt_BR |
dc.date.issued | 2014 | pt_BR |
dc.identifier.issn | 1539-3755 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/114533 | pt_BR |
dc.description.abstract | We explore ensemble inequivalence in long-range interacting systems by studying an XY model of classical spinswith ferromagnetic and nematic coupling.We demonstrate the inequivalence bymapping themicrocanonical phase diagram onto the canonical one, and also by doing the inverse mapping. We show that the equilibrium phase diagrams within the two ensembles strongly disagree within the regions of first-order transitions, exhibiting interesting features like temperature jumps. In particular, we discuss the coexistence and forbidden regions of different macroscopic states in both the phase diagrams. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 90, no. 6 (Dec. 2014), 062141, 5 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Ferromagnetismo | pt_BR |
dc.subject | Diagramas de fase | pt_BR |
dc.title | Ensemble inequivalence in a mean-field XY model with ferromagnetic and nematic couplings | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000955546 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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