Driven Widom-Rowlinson lattice gas
| dc.creator | Ronald Dickman | |
| dc.creator | Royce. K. P. Zia | |
| dc.date.accessioned | 2022-05-16T16:18:15Z | |
| dc.date.accessioned | 2025-09-08T23:03:08Z | |
| dc.date.available | 2022-05-16T16:18:15Z | |
| dc.date.issued | 2018-06-18 | |
| dc.description.sponsorship | CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
| dc.identifier.doi | https://doi.org/10.1103/PhysRevE.97.062126 | |
| dc.identifier.issn | 2470-0053 | |
| dc.identifier.uri | https://hdl.handle.net/1843/41707 | |
| dc.language | eng | |
| dc.publisher | Universidade Federal de Minas Gerais | |
| dc.relation.ispartof | Physical Review E | |
| dc.rights | Acesso Restrito | |
| dc.subject | Gás de rede | |
| dc.subject | Transições de fases | |
| dc.subject | Fenômenos críticos | |
| dc.subject | Método de Monte Carlo | |
| dc.subject.other | Gás de rede dirigido | |
| dc.subject.other | Transições de fase de não-equilíbrio | |
| dc.subject.other | Dinâmica de padrões | |
| dc.subject.other | Fenômenos críticos | |
| dc.subject.other | Escala de interfaces | |
| dc.subject.other | Simulação de Monte Carlo | |
| dc.title | Driven Widom-Rowlinson lattice gas | |
| dc.type | Artigo de periódico | |
| local.citation.epage | 062126-14 | |
| local.citation.issue | 6 | |
| local.citation.spage | 062126-1 | |
| local.citation.volume | 97 | |
| local.description.resumo | In the Widom-Rowlinson lattice gas, two particle species (A, B) diffuse freely via particle-hole exchange, subject to both on-site exclusion and prohibition of A-B nearest-neighbor pairs. As an athermal system, the overall densities are the only control parameters. As the densities increase, an entropically driven phase transition occurs, leading to ordered states with A- and B-rich domains separated by hole-rich interfaces. Using Monte Carlo simulations, we analyze the effect of imposing a drive on this system, biasing particle moves along one direction. Our study parallels that for a driven Ising lattice gas, the Katz-Lebowitz-Spohn (KLS) model, whichdisplays atypical collective behavior, e.g., structure factors with discontinuity singularities and ordered states with domains only parallel to the drive. Here, other interesting features emerge, including structure factors with kink singularities (best fitted to |q|), maxima at nonvanishing wave-vector values, oscillating correlation functions, and ordering into multiple striped domains perpendicular to the drive, with a preferred wavelength depending on density and drive intensity. Moreover, the (hole-rich) interfaces between the domains are statistically rough (whether driven or not), in sharp contrast with those in the KLS model, in which the drive suppresses interfacial roughness. Defining an order parameter that accounts for the emergence of multistripe states, we map out the phase diagram in the density-drive plane and present preliminary evidence for a critical phase in this driven lattice gas. | |
| local.identifier.orcid | https://orcid.org/0000-0003-2378-9393 | |
| local.publisher.country | Brasil | |
| local.publisher.department | ICX - DEPARTAMENTO DE FÍSICA | |
| local.publisher.initials | UFMG | |
| local.url.externa | https://journals.aps.org/pre/abstract/10.1103/PhysRevE.97.062126 |
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