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dc.contributor.authorTeles, Tarcisio Nunespt_BR
dc.contributor.authorGupta, Shamikpt_BR
dc.contributor.authorDi Cintio, Pierfrancescopt_BR
dc.contributor.authorCasetti, Lapopt_BR
dc.date.accessioned2015-12-25T02:39:49Zpt_BR
dc.date.issued2015pt_BR
dc.identifier.issn1539-3755pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/131411pt_BR
dc.description.abstractTemperature inversions occur in nature, e.g., in the solar corona and in interstellar molecular clouds: Somewhat counterintuitively, denser parts of the system are colder than dilute ones.We propose a simple and appealing way to spontaneously generate temperature inversions in systems with long-range interactions, by preparing them in inhomogeneous thermal equilibrium states and then applying an impulsive perturbation. In similar situations, short-range systems would typically relax to another thermal equilibrium, with a uniform temperature profile. By contrast, in long-range systems, the interplay between wave-particle interaction and spatial inhomogeneity drives the system to nonequilibrium stationary states that generically exhibit temperature inversion.We demonstrate this mechanism in a simple mean-field model and in a two-dimensional self-gravitating system. Our work underlines the crucial role the range of interparticle interaction plays in determining the nature of steady states out of thermal equilibrium.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. E, Statistical, nonlinear, and soft matter physics. Vol. 92, no. 2 (Aug. 2015), 020101, 5 p.pt_BR
dc.rightsOpen Accessen
dc.subjectPlasmas astrofisicospt_BR
dc.subjectNuvens moleculares interestelarespt_BR
dc.subjectTermodinâmica de não-equilíbriopt_BR
dc.subjectCoroa solarpt_BR
dc.titleTemperature inversion in long-range interacting systemspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000980921pt_BR
dc.type.originEstrangeiropt_BR


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