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cond-mat.str-el2005★ 15 cited
Spectral moment sum rules for strongly correlated electrons in time-dependent electric fields
V. M. Turkowski, J. K. Freericks
We derive exact operator average expressions for the first two spectral moments of nonequilibrium Green's functions for the Falicov-Kimball model and the Hubbard model in the prese…
cond-mat.str-el2005★ 17 cited
Optical sum rules that relate to the potential energy of strongly correlated systems
J. K. Freericks, T. P. Devereaux, M. Moraghebi +1
A class of sum rules for inelastic light scattering is developed. We show that the first moment of the non-resonant response provides information about the potential energy in stro…