Dynamical susceptibilities in strong coupling approach

Abstract

A general scheme to calculate dynamical susceptibilities of strongly correlated electron systems within the dynamical mean field theory is developed. Approach is based on an expansion over electron hopping around the atomic limit (within the diagrammatic technique for site operators: projection and Hubbard ones) in infinite dimensions. As an example, the Falicov-Kimball and simplified pseudospin-electron models are considered for which an analytical expressions for dynamical susceptibilities are obtained.

2 pages, 3 eps figures, final version published in proceedings of M2S-HTSC-VI (Houston)

Cited by in corpus (19)

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• Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
• Exact solution of the Falicov-Kimball model with dynamical mean-field theory
• Analytical investigation of singularities in two-particle irreducible vertex functions of the Hubbard atom
• Exact out-of-time-ordered correlation functions for an interacting lattice fermion model
• Raman scattering through a metal-insulator transition
• Electronic Raman scattering in correlated materials: exact treatment of nonresonant, mixed, and resonant scattering with dynamical mean field theory
• Dynamical mean-field theory of correlated hopping: A rigorous local approach
• Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials
• Inelastic X-ray scattering in correlated (Mott) insulators
• Resonant inelastic X-ray scattering in a Mott insulator
• Spectral properties of four-time fermionic Green's functions
• Local correlation functions of arbitrary order for the Falicov-Kimball model
• Inelastic x-ray scattering as a probe of electronic correlations
• Effect of vertex corrections on the longitudinal transport through multilayered nanostructures: Exact dynamical mean-field theory approach applied to the inhomogeneous Falicov-Kimball model
• Nonresonant Raman and inelastic X-ray scattering in the charge-density-wave phase of the spinless Falicov-Kimball model
• The two-state Bose-Hubbard model in the hard-core boson limit: Non-ergodicity and the Bose-Einstein condensation
• Resonant Raman scattering effects in a nesting driven charge-density-wave insulator: exact analysis of the spinless Falicov-Kimball model with dynamical mean-field theory
• A pedagogical derivation of dynamical susceptibilities