First order Mott transition at zero temperature in two dimensions: Variational plaquette study

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dc.creatorBalzer, Matthias
dc.creatorKyung, Bumsoo
dc.creatorSénéchal, David
dc.creatorTremblay, A. -M. S.
dc.creatorPotthoff, Michael
dc.date2008-08-18
dc.date2008-11-18
dc.date.accessioned2026-07-07T12:34:04Z
dc.date.available2026-07-07T12:34:04Z
dc.descriptionThe nature of the metal-insulator Mott transition at zero temperature has been discussed for a number of years. Whether it occurs through a quantum critical point or through a first order transition is expected to profoundly influence the nature of the finite temperature phase diagram. In this paper, we study the zero temperature Mott transition in the two-dimensional Hubbard model on the square lattice with the variational cluster approximation. This takes into account the influence of antiferromagnetic short-range correlations. By contrast to single-site dynamical mean-field theory, the transition turns out to be first order even at zero temperature.
dc.description6 pages, 5 figures, version 2 with additional results for 8 bath sites
dc.identifierhttps://arxiv.org/abs/0808.2364
dc.identifierhttp://arxiv.org/abs/0808.2364
dc.identifierEurophys. Lett. 85, 17002 (2009)
dc.identifierdoi:10.1209/0295-5075/85/17002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217293
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleFirst order Mott transition at zero temperature in two dimensions: Variational plaquette study
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