On weak ergodicity breaking in mean-field spin glasses

The weak ergodicity breaking hypothesis postulates that out-of-equilibrium glassy systems lose memory of their initial state despite being unable to reach an equilibrium stationary state. It is a milestone of glass physics, and has provided a lot of insight on the physical properties of glass aging....

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Bibliographic Details
Published inSciPost physics Vol. 15; no. 3; p. 109
Main Authors Folena, Giampaolo, Zamponi, Francesco
Format Journal Article
LanguageEnglish
Published SciPost Foundation 01.09.2023
SciPost
Subjects
Condensed Matter
Disordered Systems and Neural Networks
Physics
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Summary:The weak ergodicity breaking hypothesis postulates that out-of-equilibrium glassy systems lose memory of their initial state despite being unable to reach an equilibrium stationary state. It is a milestone of glass physics, and has provided a lot of insight on the physical properties of glass aging. Despite its undoubted usefulness as a guiding principle, its general validity remains a subject of debate. Here, we present evidence that this hypothesis does not hold for a class of mean-field spin glass models. While most of the qualitative physical picture of aging remains unaffected, our results suggest that some important technical aspects should be revisited.
ISSN:2542-4653
2542-4653
DOI:10.21468/SciPostPhys.15.3.109