Statistical dynamical mean-field description of strongly correlated disordered electron-phonon systems

Details Statistical dynamical mean-field description of strongly correlated disordered electron-phonon systems Statistical dynamical mean-field description of strongly correlated disordered electron-phonon systems

2002-06-02

arxiv.org/abs/cond-mat/0206019v1

Phys. Rev. B 66, 073102 (2002)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures, contribution to the Strongly Correlated Electron Systems Conference, Krakow 2002

Scientific paper

10.1103/PhysRevB.66.073102

Combining the self-consistent theory of localization and the dynamical mean-field theory, we present a theoretical approach capable of describing both self-trapping of charge carriers during the process of polaron formation and disorder-induced Anderson localization. By constructing random samples for the local density of states (LDOS) we analyze the distribution function for this quantity and demonstrate that the typical rather than the mean LDOS is a natural measure to distinguish between itinerant and localized states. Significant polaron effects on the mobility edge are found.

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