Nonequilibrium characterization of spinodal points using short time dynamics

Autores
Loscar, Ernesto Selim; Ferrero, Ezequiel E.; Grigera, Tomás Sebastián; Cannas, Sergio A.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Although intuitively appealing, the concept of spinodal is rigorously defined only in systems with infinite range interactions mean-field systems. In short-range systems, a pseudospinodal can be defined by extrapolation of metastable measurements, but the point itself is not reachable because it lies beyond the metastability limit. In this work we show that a sensible definition of spinodal points can be obtained through the short time dynamical behavior of the system deep inside the metastable phase by looking for a point where the system shows critical behavior. We show that spinodal points obtained by this method agree both with the thermodynamical spinodal point in mean-field systems and with the pseudospinodal point obtained by extrapolation of metaequilibrium behavior in short-range systems. With this definition, a practical determination can be achieved without regard for equilibration issues.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Física
Spinodal
Short time dynamics
Monte Carlo
Potts and Ising models
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/129368
Acceder
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network_name_str SEDICI (UNLP)
spelling Nonequilibrium characterization of spinodal points using short time dynamicsLoscar, Ernesto SelimFerrero, Ezequiel E.Grigera, Tomás SebastiánCannas, Sergio A.QuímicaFísicaSpinodalShort time dynamicsMonte CarloPotts and Ising modelsAlthough intuitively appealing, the concept of spinodal is rigorously defined only in systems with infinite range interactions mean-field systems. In short-range systems, a pseudospinodal can be defined by extrapolation of metastable measurements, but the point itself is not reachable because it lies beyond the metastability limit. In this work we show that a sensible definition of spinodal points can be obtained through the short time dynamical behavior of the system deep inside the metastable phase by looking for a point where the system shows critical behavior. We show that spinodal points obtained by this method agree both with the thermodynamical spinodal point in mean-field systems and with the pseudospinodal point obtained by extrapolation of metaequilibrium behavior in short-range systems. With this definition, a practical determination can be achieved without regard for equilibration issues.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/129368enginfo:eu-repo/semantics/altIdentifier/issn/1089-7690info:eu-repo/semantics/altIdentifier/issn/0021-9606info:eu-repo/semantics/altIdentifier/arxiv/0811.2673info:eu-repo/semantics/altIdentifier/pmid/19603983info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3168404info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:12:11Zoai:sedici.unlp.edu.ar:10915/129368Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:12:11.776SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Nonequilibrium characterization of spinodal points using short time dynamics
title Nonequilibrium characterization of spinodal points using short time dynamics
spellingShingle Nonequilibrium characterization of spinodal points using short time dynamics
Loscar, Ernesto Selim
Química
Física
Spinodal
Short time dynamics
Monte Carlo
Potts and Ising models
title_short Nonequilibrium characterization of spinodal points using short time dynamics
title_full Nonequilibrium characterization of spinodal points using short time dynamics
title_fullStr Nonequilibrium characterization of spinodal points using short time dynamics
title_full_unstemmed Nonequilibrium characterization of spinodal points using short time dynamics
title_sort Nonequilibrium characterization of spinodal points using short time dynamics
dc.creator.none.fl_str_mv Loscar, Ernesto Selim
Ferrero, Ezequiel E.
Grigera, Tomás Sebastián
Cannas, Sergio A.
author Loscar, Ernesto Selim
author_facet Loscar, Ernesto Selim
Ferrero, Ezequiel E.
Grigera, Tomás Sebastián
Cannas, Sergio A.
author_role author
author2 Ferrero, Ezequiel E.
Grigera, Tomás Sebastián
Cannas, Sergio A.
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Física
Spinodal
Short time dynamics
Monte Carlo
Potts and Ising models
topic Química
Física
Spinodal
Short time dynamics
Monte Carlo
Potts and Ising models
dc.description.none.fl_txt_mv Although intuitively appealing, the concept of spinodal is rigorously defined only in systems with infinite range interactions mean-field systems. In short-range systems, a pseudospinodal can be defined by extrapolation of metastable measurements, but the point itself is not reachable because it lies beyond the metastability limit. In this work we show that a sensible definition of spinodal points can be obtained through the short time dynamical behavior of the system deep inside the metastable phase by looking for a point where the system shows critical behavior. We show that spinodal points obtained by this method agree both with the thermodynamical spinodal point in mean-field systems and with the pseudospinodal point obtained by extrapolation of metaequilibrium behavior in short-range systems. With this definition, a practical determination can be achieved without regard for equilibration issues.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Although intuitively appealing, the concept of spinodal is rigorously defined only in systems with infinite range interactions mean-field systems. In short-range systems, a pseudospinodal can be defined by extrapolation of metastable measurements, but the point itself is not reachable because it lies beyond the metastability limit. In this work we show that a sensible definition of spinodal points can be obtained through the short time dynamical behavior of the system deep inside the metastable phase by looking for a point where the system shows critical behavior. We show that spinodal points obtained by this method agree both with the thermodynamical spinodal point in mean-field systems and with the pseudospinodal point obtained by extrapolation of metaequilibrium behavior in short-range systems. With this definition, a practical determination can be achieved without regard for equilibration issues.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/129368
url http://sedici.unlp.edu.ar/handle/10915/129368
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1089-7690
info:eu-repo/semantics/altIdentifier/issn/0021-9606
info:eu-repo/semantics/altIdentifier/arxiv/0811.2673
info:eu-repo/semantics/altIdentifier/pmid/19603983
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3168404
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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