Critical amplitudes and mass spectrum of the 2D Ising model in a magnetic field

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dc.creatorCaselle, M.
dc.creatorHasenbusch, M.
dc.date1999-11-26
dc.date2000-01-25
dc.date.accessioned2026-07-07T11:36:26Z
dc.date.available2026-07-07T11:36:26Z
dc.descriptionWe compute the spectrum and several critical amplitudes of the two dimensional Ising model in a magnetic field with the transfer matrix method. The three lightest masses and their overlaps with the spin and the energy operators are computed on lattices of a width up to L=21. In extracting the continuum results we also take into account the corrections to scaling due to irrelevant operators. In contrast with previous Monte Carlo simulations our final results are in perfect agreement with the predictions of S-matrix and conformal field theory. We also obtain the amplitudes of some of the subleading corrections, for which no S-matrix prediction has yet been obtained.
dc.descriptionFinal version, minor changes in the text, 52 pages
dc.identifierhttps://arxiv.org/abs/hep-th/9911216
dc.identifierhttp://arxiv.org/abs/hep-th/9911216
dc.identifierNucl.Phys.B579:667-703,2000
dc.identifierdoi:10.1016/S0550-3213(00)00074-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198919
dc.subjectHigh Energy Physics - Theory
dc.subjectStatistical Mechanics
dc.subjectHigh Energy Physics - Lattice
dc.titleCritical amplitudes and mass spectrum of the 2D Ising model in a magnetic field
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