Finite-temperature investigation of quarter filled ladder systems

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dc.creatorGabriel, C.
dc.creatorSherman, E.
dc.creatorLang, T. C.
dc.creatorAichhorn, M.
dc.creatorEvertz, H. G.
dc.date2004-06-29
dc.date.accessioned2026-07-07T02:58:55Z
dc.date.available2026-07-07T02:58:55Z
dc.descriptionWe investigate charge ordering in a quarter-filled ladder at finite temperature by determinantal Quantum Monte Carlo. The sign problem is moderate in a wide range of model parameters relevant for NaV2O5. The charge order parameter exhibits a crossover as a function of inverse temperature on finite systems. Above a critical nearest neighbor Coulomb repulsion, the correlation length grows exponentially with inverse temperature, indicative of the ordered phase at T=0. We find a clear single-particle gap manifesting itself in a flat n(μ) dependence at large nearest neighbor Coulomb repulsion.
dc.description2 pages, 4 eps-figures, submitted to SCES04
dc.identifierhttps://arxiv.org/abs/cond-mat/0406715
dc.identifierhttp://arxiv.org/abs/cond-mat/0406715
dc.identifierPhysica B359, 1400 (2005)
dc.identifierdoi:10.1016/j.physb.2005.01.436
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24303
dc.subjectStrongly Correlated Electrons
dc.titleFinite-temperature investigation of quarter filled ladder systems
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