Quantum periodic cluster methods for strongly correlated electron systems

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dc.creatorMinh-Tien, Tran
dc.date2006-02-27
dc.date2006-04-20
dc.date.accessioned2026-07-07T07:01:58Z
dc.date.available2026-07-07T07:01:58Z
dc.descriptionQuantum periodic cluster methods for strongly correlated electron systems are reformulated and developed. The reformulation and development are based on a canonical transformation which periodizes the fermions in the cluster space. The dynamical cluster approximation and the cellular dynamical mean field theory are related each other through the canonical transformation. A cluster perturbation theory with periodic boundary conditions is developed. It is found that the periodic cluster perturbation theory converges rapidly with corrections $\mathcal{O}(1/L_c^2)$, where $L_c$ is the linear size of the clusters, whereas the ordinary cluster perturbation theory converges with corrections $\mathcal{O}(1/L_c)$.
dc.description7 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0602615
dc.identifierhttp://arxiv.org/abs/cond-mat/0602615
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/108447
dc.subjectStrongly Correlated Electrons
dc.titleQuantum periodic cluster methods for strongly correlated electron systems
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