Time-dependent Gutzwiller theory for multi-band Hubbard models

Details Time-dependent Gutzwiller theory for multi-band Hubbard models Time-dependent Gutzwiller theory for multi-band Hubbard models

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011njph...13k3031v&link_type=abstract

New Journal of Physics, Volume 13, Issue 11, pp. 113031 (2011).

Physics

Scientific paper

We formulate a multi-band generalization of the time-dependent Gutzwiller theory. This approach allows for the calculation of general two-particle response functions, which are crucial for an understanding of various experiments in solid-state physics. As a first application, we study the momentum- and frequency-resolved magnetic susceptibility in a two-band Hubbard model. As in the case of underlying ground-state approaches, we find significant differences between the results of our method and those from a time-dependent Hartree-Fock approximation.

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