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EPL Association, European Physical Society Letters, 3(72), p. 472-478, 2005

DOI: 10.1209/epl/i2005-10256-2

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Disorder chaos in spin glasses

Journal article published in 2005 by Florent Krzakala ORCID, Jean-Philippe Bouchaud
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We investigate numerically disorder chaos in spin glasses, i.e. the sensitivity of the ground state to small changes of the random couplings. Our study focuses on the Edwards-Anderson model in d=1,2,3 and in mean-field. We find that in all cases, simple scaling laws, involving the size of the system and the strength of the perturbation, are obeyed. We characterize in detail the distribution of overlap between ground states and the geometrical properties of flipped spin clusters in both the weak and strong chaos regime. The possible relevance of these results to temperature chaos is discussed. ; Comment: 7 pages, 8 figures, replaced with accepted version