A solvable quantum antiferromagnet model

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dc.creatorChakrabarti, Bikas K.
dc.creatorInoue, Jun-ichi
dc.date2005-08-09
dc.date2005-08-10
dc.date.accessioned2026-07-07T03:06:14Z
dc.date.available2026-07-07T03:06:14Z
dc.descriptionWe introduce a quantum antiferromagnet model, having exactly soluble thermodynamic properties. It is an infinite range antiferromagnetic Ising model put in a transverse field. The free energy gives the ground state energy in the zero temperature limit and it also gives the low temperature behaviour of the specific heat, the exponential variation of which gives the precise gap magnitude in the excitation spectrum of the system. The detailed behaviour of the (random sublattice) staggard magnetisation and susceptibilities are obtained and studied near the Néel temperature and the zero temperature quantum critical point.
dc.description4 pages, 2 eps figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0508218
dc.identifierhttp://arxiv.org/abs/cond-mat/0508218
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26739
dc.subjectStatistical Mechanics
dc.titleA solvable quantum antiferromagnet model
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