Nonequilibrium characterization of spinodal points using short time dynamics

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 li...

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Detalles Bibliográficos
Autores principales:	Loscar, Ernesto Selim, Ferrero, Ezequiel E., Grigera, Tomás Sebastián, Cannas, Sergio A.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2009
Materias:	Química Física Spinodal Short time dynamics Monte Carlo Potts and Ising models
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/129368
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-129368
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Química Física Spinodal Short time dynamics Monte Carlo Potts and Ising models
spellingShingle	Química Física Spinodal Short time dynamics Monte Carlo Potts and Ising models Loscar, Ernesto Selim Ferrero, Ezequiel E. Grigera, Tomás Sebastián Cannas, Sergio A. Nonequilibrium characterization of spinodal points using short time dynamics
topic_facet	Química Física Spinodal Short time dynamics Monte Carlo Potts and Ising models
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.
format	Articulo Articulo
author	Loscar, Ernesto Selim Ferrero, Ezequiel E. Grigera, Tomás Sebastián Cannas, Sergio A.
author_facet	Loscar, Ernesto Selim Ferrero, Ezequiel E. Grigera, Tomás Sebastián Cannas, Sergio A.
author_sort	Loscar, Ernesto Selim
title	Nonequilibrium characterization of spinodal points using short time dynamics
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
publishDate	2009
url	http://sedici.unlp.edu.ar/handle/10915/129368
work_keys_str_mv	AT loscarernestoselim nonequilibriumcharacterizationofspinodalpointsusingshorttimedynamics AT ferreroezequiele nonequilibriumcharacterizationofspinodalpointsusingshorttimedynamics AT grigeratomassebastian nonequilibriumcharacterizationofspinodalpointsusingshorttimedynamics AT cannassergioa nonequilibriumcharacterizationofspinodalpointsusingshorttimedynamics
bdutipo_str	Repositorios
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Nonequilibrium characterization of spinodal points using short time dynamics

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