Sample-to-sample fluctuations of the overlap distributions in the three-dimensional Edwards-Anderson spin glass

Alvarez Baños, R. ; Cruz, A. (Universidad de Zaragoza) ; Fernandez, L.A. ; Gil-Narvion, J.M. ; Gordillo-Guerrero, A. ; Guidetti, M. ; Iñiguez, D. ; Maiorano, A. ; Mantovani, F. ; Marinari, E. ; Martin-Mayor, V. ; Monforte-Garcia, J. (Universidad de Zaragoza) ; Muñoz Sudupe, A. ; Navarro, D. (Universidad de Zaragoza) ; Parisi, G. ; Perez-Gaviro, S. ; Ricci-Tersenghi, F. ; Ruiz-Lorenzo, J.J. ; Schifano, S.F. ; Seoane, B. ; Tarancón, A. (Universidad de Zaragoza) ; Tripiccione, R. ; Yllanes, D.

Resumen: We study the sample-to-sample fluctuations of the overlap probability densities from large-scale equilibrium simulations of the three-dimensional Edwards-Anderson spin glass below the critical temperature. Ultrametricity, stochastic stability, and overlap equivalence impose constraints on the moments of the overlap probability densities that can be tested against numerical data. We found small deviations from the Ghirlanda-Guerra predictions, which get smaller as system size increases. We also focus on the shape of the overlap distribution, comparing the numerical data to a mean-field-like prediction in which finite-size effects are taken into account by substituting delta functions with broad peaks.

Idioma: Inglés

DOI: 10.1103/PhysRevB.84.174209

Año: 2011

Publicado en: Physical review. B, Condensed matter and materials physics 84, 17 (2011), 174209 [10 pp.]
ISSN: 1098-0121

Factor impacto JCR: 3.691 (2011)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 13 / 68 = 0.191 (2011) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/ES/MICINN/FIS2009-12648-C03-02
Financiación: info:eu-repo/grantAgreement/ES/MICINN/FIS2010-16587

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Tecnología Electrónica (Dpto. Ingeniería Electrón.Com.)
Área (Departamento): Área Física Teórica (Dpto. Física Teórica)