Quantum Phase Transitions in s=1/2 Ising Chain in a Regularly Alternating Transverse Field

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dc.creatorDerzhko, Oleg
dc.creatorKrokhmalskii, Taras
dc.date2005-05-26
dc.date.accessioned2026-07-07T06:24:46Z
dc.date.available2026-07-07T06:24:46Z
dc.descriptionWe consider the ground-state properties of the s=1/2 Ising chain in a transverse field which varies regularly along the chain having a period of alternation 2. Such a model, similarly to its uniform counterpart, exhibits quantum phase transitions. However, the number and the position of the quantum phase transition points depend on the strength of transverse field modulation. The behaviour in the vicinity of the critical field in most cases remains the same as for the uniform chain (i.e. belongs to the square-lattice Ising model universality class). However, a new critical behaviour may also arise. We report the results for critical exponents obtained partially analytically and partially numerically for very long chains consisting of a few thousand sites.
dc.descriptionPresented at 12-th Czech and Slovak Conference on Magnetism, Košice, 12-15 July 2004
dc.identifierhttps://arxiv.org/abs/cond-mat/0505642
dc.identifierhttp://arxiv.org/abs/cond-mat/0505642
dc.identifierCzechoslovak Journal of Physics, May 2005, Volume 55, Number 5, Pages: 605 - 608
dc.identifierdoi:10.1007/s10582-005-0065-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96658
dc.subjectStatistical Mechanics
dc.subjectStrongly Correlated Electrons
dc.titleQuantum Phase Transitions in s=1/2 Ising Chain in a Regularly Alternating Transverse Field
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