Artículo
Activated dynamics and timescale separation within the landscape paradigm: Signature of complexity, diversity and glassiness
Appignanesi, Gustavo Adrian
; Alarcon, Laureano Martin
; Rodriguez Fris, Jorge Ariel
; Frechero, Marisa Alejandra
; Montani, Rosana A.
Fecha de publicación:
04/2005
Editorial:
Elsevier Science
Revista:
Biophysical Chemistry
ISSN:
0301-4622
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The landscape paradigm has become a widespread picture within the realm of complex systems. Complex systems include a great variety of systems, ranging from glasses to biopolymers, which display a common dynamical behavior. Within this framework, the dynamics of a such a system can be envisioned as the search it performs on its (potential energy) landscape. This approach rests on the belief that the relaxation behavior depends only on generic features, irrespective of specific details and lies on the validity of a timescale separation scenario computationally corroborated but not properly validated yet form first principles. In this work we shall show that the prevalence of activated dynamics over other kinds of mechanisms determines the emergence of complex dynamical behavior. Thus, complexity and diversity are not intrinsic properties of a system but depend on the kind of exploration of the landscape. We shall focus mainly on an ample generic context (complex hierarchical systems which have been used as models of glasses, spin glasses and biopolymers) and a specific one (model glass formers). For the last case we shall be able to reveal (in mechanistic terms) the microscopic rationale for the occurrence of timescale separation. Furthermore, we shall explore the connections between these two up to now mostly unrelated contexts and the relation to a variational principle, and we shall reveal the conditions for the applicability of the landscape approach.
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Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos(INQUISUR)
Articulos de INST.DE QUIMICA DEL SUR
Articulos de INST.DE QUIMICA DEL SUR
Citación
Appignanesi, Gustavo Adrian; Alarcon, Laureano Martin; Rodriguez Fris, Jorge Ariel; Frechero, Marisa Alejandra; Montani, Rosana A.; Activated dynamics and timescale separation within the landscape paradigm: Signature of complexity, diversity and glassiness; Elsevier Science; Biophysical Chemistry; 115; 2-3 SPEC. ISS.; 4-2005; 129-134
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