The BCS-BEC crossover and superconductivity in a lattice fermion model with hard core repulsion

Simple item page
dc.creatorKujawa, Agnieszka
dc.date2008-08-11
dc.date.accessioned2026-07-07T09:55:54Z
dc.date.available2026-07-07T09:55:54Z
dc.descriptionWe have considered the BCS-BEC crossover at T=0 in the framework of a lattice fermion model (the extended Hubbard model). We have analyzed the case of on-site hard core repulsion ($U=\infty$) and intersite attraction ($W<0$) in a 3D system with extended s-wave pairing symmetry. The mechanisms of density-driven and attraction-strength-driven crossover have been analyzed. We have obtained the ground state phase diagram. The analyzed quantities are: chemical potential, order parameter, coherence length and fraction of condensed particles.
dc.description8 pages, 4 figures, Proceedings of the XII National School "Correlated Electron Systems Then and Now", Ustron, September 14-18, 2006
dc.identifierhttps://arxiv.org/abs/0808.1374
dc.identifierhttp://arxiv.org/abs/0808.1374
dc.identifierActa Physica Polonica A, Vol. 111 (2007), No. 5, 745-752
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166790
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleThe BCS-BEC crossover and superconductivity in a lattice fermion model with hard core repulsion
dc.typetext

Files

Collections

arXiv