Reference : Density of states for a specified correlation function and the energy landscape

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Mathematics Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/111850

Title :	Density of states for a specified correlation function and the energy landscape
Language :	English
Author, co-author :	Gommes, Cédric [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
	Jiao, Yang [Princeton University > Chemistry > > >]
	Torquato, Salvatore [Princeton University > Princeton Center for theoretical sciences > > >]
Publication date :	2012
Journal title :	Physical Review Letters
Publisher :	American Physical Society
Audience :	International
ISSN :	0031-9007
e-ISSN :	1079-7114
City :	Ridge
Country :	NY
Abstract :	[en] The degeneracy of two-phase disordered microstructures consistent with a specified correlation function is analyzed by mapping it to a ground-state degeneracy. We determine for the first time the associated density of states via a Monte Carlo algorithm. Our results are described in terms of the roughness of the energy landscape, defined on a hypercubic configuration space. The use of a Hamming distance in this space enables us to define a roughness metric, which is calculated from the correlation function alone and related quantitatively to the structural degeneracy. This relation is validated for a wide variety of disordered systems.
Permalink :	http://hdl.handle.net/2268/111850

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