Thermodynamic glass transition in a spin glass without time-reversal symmetry



Downloads per month over past year

Fernández Pérez, Luis Antonio and Martín Mayor, Víctor and Muñoz Sudupe, Antonio and Seoane Bartolomé, Beatriz and Yllanes Mosquera, David and et al, ... (2012) Thermodynamic glass transition in a spin glass without time-reversal symmetry. Proceedings of the National Academy of Sciences of the United States of America, 109 (17). pp. 6452-6456. ISSN 0027-8424

[thumbnail of FernándezPérezLuisAntonio08PREPRINT.pdf]

Official URL:


Spin glasses are a longstanding model for the sluggish dynamics that appear at the glass transition. However, spin glasses differ from structural glasses in a crucial feature: they enjoy a time reversal symmetry. This symmetry can be broken by applying an external magnetic field, but embarrassingly little is known about the critical behavior of a spin glass in a field. In this context, the space dimension is crucial. Simulations are easier to interpret in a large number of dimensions, but one must work below the upper critical dimension (i.e., in d < 6) in order for results to have relevance for experiments. Here we show conclusive evidence for the presence of a phase transition in a four-dimensional spin glass in a field. Two ingredients were crucial for this achievement: massive numerical simulations were carried out on the Janus special-purpose computer, and a new and powerful finite-size scaling method.

Item Type:Article
Additional Information:

© 2012 National Academy of Sciences. Artículo firmado por 22 autores. We thank Davide Rossetti for introducing us to the handling of the 128-bit registers. We acknowledge partial financial support from Ministerio de Ciencia e Innovación (MICINN), Spain, (contract nos. FIS2009-12648-C03, FIS2010-16587, TEC2010-19207), from Universidad Complutense de Madrid (UCM)-Banco de Santander (GR32/10-A/910383), from Junta de Extremadura, Spain (contract no. GR10158), and from Universidad de Extremadura (contract no. ACCVII-08). B.S. and D.Y. were supported by the Formación de Profesorado Universitario (FPU) program (Ministerio de Educación, Spain); R.A.B. and J.M.-G. were supported by the Formación de Personal Investigador (FPI) program (Diputación de Aragón, Spain); finally J.M.G.-N. was supported by the FPI program (Ministerio de Ciencia e Innovación, Spain).

Uncontrolled Keywords:Monte-Carlo; Model; Equilibrium; Simulations; Computer; Behavior; Torus; Field.
Subjects:Sciences > Physics
Sciences > Physics > Physics-Mathematical models
ID Code:37717
Deposited On:24 May 2016 07:27
Last Modified:25 May 2016 08:41

Origin of downloads

Repository Staff Only: item control page