Dissipation effects in percolating quantum Ising magnets

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dc.creatorHoyos, J. A.
dc.creatorVojta, Thomas
dc.date2007-03-21
dc.date2008-03-04
dc.date.accessioned2026-07-07T09:24:25Z
dc.date.available2026-07-07T09:24:25Z
dc.descriptionWe study the effects of dissipation on a randomly dilute transverse-field Ising magnet at and close to the percolation threshold. For weak transverse fields, a novel percolation quantum phase transition separates a super-paramagnetic cluster phase from an inhomogeneously ordered ferromagnetic phase. The properties of this transition are dominated by large frozen and slowly fluctuating percolation clusters. Implementing numerically a strong-disorder real space renormalization group technique, we compute the low-energy density of states which is found to be in good agreement with the analytical prediction.
dc.description2 pages, 1 eps figure, final version as published
dc.identifierhttps://arxiv.org/abs/cond-mat/0703557
dc.identifierhttp://arxiv.org/abs/cond-mat/0703557
dc.identifierPhysica B 403, 1245 (2008)
dc.identifierdoi:10.1016/j.physb.2007.10.260
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156089
dc.subjectDisordered Systems and Neural Networks
dc.subjectStatistical Mechanics
dc.titleDissipation effects in percolating quantum Ising magnets
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