T-matrix formulation of real-space dynamical mean-field theory and the Friedel sum rule for correlated lattice fermions
Institute of Theoretical Physics, Faculty of Physics, University of Warsaw,
ul. Pasteura 5,
02-093 Warszawa, Poland
2 Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
3 Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135 Augsburg, Germany
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Received in final form: 3 December 2018
Published online: 4 February 2019
We formulate real-space dynamical mean-field theory within scattering theory. Thereby the Friedel sum rule is derived for interacting lattice fermions at zero temperature.
Key words: Solid State and Materials
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