The spin-Peierls chain revisited

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dc.creatorHager, Georg
dc.creatorWeisse, Alexander
dc.creatorWellein, Gerhard
dc.creatorJeckelmann, Eric
dc.creatorFehske, Holger
dc.date2006-06-14
dc.date.accessioned2026-07-07T08:15:11Z
dc.date.available2026-07-07T08:15:11Z
dc.descriptionWe extend previous analytical studies of the ground-state phase diagram of a one-dimensional Heisenberg spin chain coupled to optical phonons, which for increasing spin-lattice coupling undergoes a quantum phase transition from a gap-less to a gaped phase with finite lattice dimerisation. We check the analytical results against established four-block and new two-block density matrix renormalisation group (DMRG) calculations. Different finite-size scaling behaviour of the spin excitation gaps is found in the adiabatic and anti-adiabatic regimes.
dc.description2 pages, 1 figure, submitted to ICM 2006
dc.identifierhttps://arxiv.org/abs/cond-mat/0606360
dc.identifierhttp://arxiv.org/abs/cond-mat/0606360
dc.identifierJMMM 310, 1380 (2007); Erratum: JMMM 316, 43 (2007)
dc.identifierdoi:10.1016/j.jmmm.2006.10.399
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133372
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleThe spin-Peierls chain revisited
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