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Physics of strongly correlated electron systems: Preface

Masatoshi Imada, Norio Kawakami, Hiroyuki Shiba +1 more

Progress of Theoretical Physics SupplementDec 1, 20050 citations

Dynamics and thermodynamics of the pseudospin-electron model in the case of absence of the electron Hubbard correlation. I. The analytical consideration

Ihor V. Stasyuk, Andrij M. Shvaika, K. V. Tabunschyk

Dynamics and thermodynamics of the model with local anharmonism in the case of absence of the electron (Hubbard) correlation is investigated in the present work. The correlation functions, mean values of pseudospin and particle number as well as the thermodynamical potential are calculated. The calculation is performed by diagrammatic method in the mean field approximation. Single--particle Green functions are taken in the Hubbard--I approximation.

arXiv:cond-mat/9811019Nov 2, 19980 citations

An analytical strong coupling approach in dynamical mean-field theory

Andrij M. Shvaika

In the limit of infinite spatial dimensions a thermodynamically consistent theory of the strongly correlated electron systems, which is valid for arbitrary value of the Coulombic interaction ($U

arXiv:cond-mat/0106044AcPPBJun 4, 20010 citations

Non-equilibrium steady states and and transient dynamics of correlated electron systems

Martin Eckstein

Bulletin of the American Physical SocietyMar 7, 20180 citations

Experimental and Theoretical Studies of Correlated Electron Systems

Philip A. E. Murgatroyd

Jan 1, 20210 citations

Nonlinear sigma model with particle-hole asymmetry for the disordered two-dimensional electron gas

Georg Schwiete

The nonlinear sigma model is a well-established theoretical tool for studies of transport and thermodynamics in disordered electronic systems. The conventional sigma model approach for interacting systems does not account for particle-hole asymmetry. It is therefore not suited for studying quantities that are sensitive to this effect such as the thermoelectric transport coefficient. Here, we derive a minimal extension of the Keldysh nonlinear sigma model tailored for two-dimensional interacting systems. We argue that this model can be used to systematically study the combined effect of interactions and disorder on thermoelectric transport. As a first step in this direction, we use the model to analyze the structure of the heat density-density correlation function and calculate interaction corrections to its static part. The calculation of interaction corrections to the dynamical part of the correlation function and the thermodynamic transport coefficient is left for future work.The nonlinear sigma model is a well-established theoretical tool for studies of transport and thermodynamics in disordered electronic systems. The conventional sigma model approach for interacting systems does not account for particle-hole asymmetry. It is therefore not suited for studying quantities that are sensitive to this effect such as the thermoelectric transport coefficient. Here, we derive a minimal extension of the Keldysh nonlinear sigma model tailored for two-dimensional interacting systems. We argue that this model can be used to systematically study the combined effect of interactions and disorder on thermoelectric transport. As a first step in this direction, we use the model to analyze the structure of the heat density-density correlation function and calculate interaction corrections to its static part. The calculation of interaction corrections to the dynamical part of the correlation function and the thermodynamic transport coefficient is left for future work.

arXiv:2011.04174Physical review. B./Physical review. BMar 22, 20218 citations

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