Spin glasses on the hypercube


Autoria(s): Fernández Pérez, Luis Antonio; Martín Mayor, Víctor; Parisi, G.; Seoane, B.
Data(s)

02/04/2010

Resumo

We present a mean field model for spin glasses with a natural notion of distance built in, namely, the Edwards-Anderson model on the diluted D-dimensional unit hypercube in the limit of large D. We show that finite D effects are strongly dependent on the connectivity, being much smaller for a fixed coordination number. We solve the nontrivial problem of generating these lattices. Afterward, we numerically study the nonequilibrium dynamics of the mean field spin glass. Our three main findings are the following: i the dynamics is ruled by an infinite number of time sectors, ii the aging dynamics consists of the growth of coherent domains with a nonvanishing surface-volume ratio, and iii the propagator in Fourier space follows the p4 law. We study as well the finite D effects in the nonequilibrium dynamics, finding that a naive finite size scaling ansatz works surprisingly well.

Formato

application/pdf

Identificador

http://eprints.ucm.es/37834/1/Fern%C3%A1ndezP%C3%A9rezLuisAntonio15LIBRE.pdf

Idioma(s)

en

Publicador

American Physical Society

Relação

http://eprints.ucm.es/37834/

http://doi.org/10.1103/PhysRevB.81.134403

10.1103/PhysRevB.81.134403

FIS2006-08533

FIS2009-12648-C03

GR58/08

Direitos

info:eu-repo/semantics/openAccess

Palavras-Chave #Física #Física-Modelos matemáticos
Tipo

info:eu-repo/semantics/article

PeerReviewed