Equation-of-Motion Approach to Dynamical Mean Field Theory

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dc.creatorZhu, Jian-Xin
dc.creatorAlbers, R. C.
dc.creatorWills, J. M.
dc.date2004-09-08
dc.date.accessioned2026-07-07T03:00:27Z
dc.date.available2026-07-07T03:00:27Z
dc.descriptionWe propose using an equation-of-motion approach as an impurity solver for dynamical mean field theory. As an illustration of this technique, we consider a finite-$U$ Hubbard model defined on the Bethe lattice with infinite connectivity at arbitrary filling. Depending on the filling, the spectra that is obtained exhibits a quasiparticle peak, and lower and upper Hubbard bands as typical features of strongly correlated materials. The results are also compared and in good agreement with exact diagonalization. We also find a different picture of the spectral weight transfer than the iterative perturbation theory.
dc.description5 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0409215
dc.identifierhttp://arxiv.org/abs/cond-mat/0409215
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24818
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleEquation-of-Motion Approach to Dynamical Mean Field Theory
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