Compressible Sherrington-Kirkpatrick spin-glass model

Simple item page
dc.creatorLiarte, D. B.
dc.creatorSalinas, S. R.
dc.creatorYokoi, C. S. O.
dc.date2008-09-11
dc.date2009-04-30
dc.date.accessioned2026-07-07T13:09:41Z
dc.date.available2026-07-07T13:09:41Z
dc.descriptionWe introduce a Sherrington-Kirkpatrick spin-glass model with the addition of elastic degrees of freedom. The problem is formulated in terms of an effective four-spin Hamiltonian in the pressure ensemble, which can be treated by the replica method. In the replica-symmetric approximation, we analyze the pressure-temperature phase diagram, and obtain expressions for the critical boundaries between the disordered and the ordered (spin-glass and ferromagnetic) phases. The second-order para-ferromagnetic border ends at a tricritical point, beyond which the transition becomes discontinuous. We use these results to make contact with the temperature-concentration phase diagrams of mixtures of hydrogen-bonded crystals.
dc.description8 pages, 2 figures; added references, added content
dc.identifierhttps://arxiv.org/abs/0809.2084
dc.identifierhttp://arxiv.org/abs/0809.2084
dc.identifierJ. Phys. A: Math. Theor. 42 (2009) 205002
dc.identifierdoi:10.1088/1751-8113/42/20/205002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228819
dc.subjectDisordered Systems and Neural Networks
dc.subjectStatistical Mechanics
dc.titleCompressible Sherrington-Kirkpatrick spin-glass model
dc.typetext

Files

Collections

arXiv