Nonuniversal disordered Glauber dynamics

We consider the one-dimensional Glauber dynamics with coupling disorder in terms of bilinear fermion Hamiltonians. Dynamic exponents embodied in the spectrum gap of these latter are evaluated numerically by averaging over both binary and Gaussian disorder realizations. In the first case, these expon...

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Autores principales: Grynberg, Marcelo Daniel, Stinchcombe, Robin B.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96958
https://ri.conicet.gov.ar/11336/23630
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.87.062102
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id I19-R120-10915-96958
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Quenched disorder
Non-universal regimes
Stretched exponential growth
spellingShingle Física
Quenched disorder
Non-universal regimes
Stretched exponential growth
Grynberg, Marcelo Daniel
Stinchcombe, Robin B.
Nonuniversal disordered Glauber dynamics
topic_facet Física
Quenched disorder
Non-universal regimes
Stretched exponential growth
description We consider the one-dimensional Glauber dynamics with coupling disorder in terms of bilinear fermion Hamiltonians. Dynamic exponents embodied in the spectrum gap of these latter are evaluated numerically by averaging over both binary and Gaussian disorder realizations. In the first case, these exponents are found to follow the nonuniversal values of those of plain dimerized chains. In the second situation their values are still nonuniversal and subdiffusive below a critical variance above which, however, the relaxation time is suggested to grow as a stretched exponential of the equilibrium correlation length.
format Articulo
Articulo
author Grynberg, Marcelo Daniel
Stinchcombe, Robin B.
author_facet Grynberg, Marcelo Daniel
Stinchcombe, Robin B.
author_sort Grynberg, Marcelo Daniel
title Nonuniversal disordered Glauber dynamics
title_short Nonuniversal disordered Glauber dynamics
title_full Nonuniversal disordered Glauber dynamics
title_fullStr Nonuniversal disordered Glauber dynamics
title_full_unstemmed Nonuniversal disordered Glauber dynamics
title_sort nonuniversal disordered glauber dynamics
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/96958
https://ri.conicet.gov.ar/11336/23630
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.87.062102
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