Energy statistics in disordered systems: The local REM conjecture and beyond

dc.creatorBovier, Anton
dc.creatorKurkova, Irina
dc.date2005-06-21
dc.date.accessioned2026-07-07T03:05:43Z
dc.date.available2026-07-07T03:05:43Z
dc.descriptionRecently, Bauke and Mertens conjectured that the local statistics of energies in random spin systems with discrete spin space should in most circumstances be the same as in the random energy model. Here we give necessary conditions for this hypothesis to be true, which we show to hold in wide classes of examples: short range spin glasses and mean field spin glasses of the SK type. We also show that, under certain conditions, the conjecture holds even if energy levels that grow moderately with the volume of the system are considered. In the case of the Generalised Random energy model, we give a complete analysis for the behaviour of the local energy statistics at all energy scales. In particular, we show that, in this case, the REM conjecture holds exactly up to energies $E_N<\b_c N$, where $\b_c$ is the critical temperature. We also explain the more complex behaviour that sets in at higher energies.
dc.descriptionto appear in Proceedings of Applications of random matrices to economics and other complex systems
dc.identifierhttps://arxiv.org/abs/cond-mat/0506521
dc.identifierhttp://arxiv.org/abs/cond-mat/0506521
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26551
dc.subjectDisordered Systems and Neural Networks
dc.titleEnergy statistics in disordered systems: The local REM conjecture and beyond
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