Entropic Effects in the Very Low Temperature Regime of Diluted Ising Spin Glasses with Discrete Couplings

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dc.creatorJorg, Thomas
dc.creatorRicci-Tersenghi, Federico
dc.date2007-07-03
dc.date2009-01-02
dc.date.accessioned2026-07-07T12:23:26Z
dc.date.available2026-07-07T12:23:26Z
dc.descriptionWe study link-diluted $\pm J$ Ising spin glass models on the hierarchical lattice and on a three-dimensional lattice close to the percolation threshold. We show that previously computed zero temperature fixed points are unstable with respect to temperature perturbations and do not belong to any critical line in the dilution-temperature plane. We discuss implications of the presence of such spurious unstable fixed points on the use of optimization algorithms, and we show how entropic effects should be taken into account to obtain the right physical behavior and critical points.
dc.description4 pages, 4 figures. A major typo error in formula (8) has been corrected
dc.identifierhttps://arxiv.org/abs/0707.0480
dc.identifierhttp://arxiv.org/abs/0707.0480
dc.identifierPhys. Rev. Lett. 100, 177203 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.177203
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213984
dc.subjectDisordered Systems and Neural Networks
dc.subjectStatistical Mechanics
dc.titleEntropic Effects in the Very Low Temperature Regime of Diluted Ising Spin Glasses with Discrete Couplings
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