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Dynamical mean-field theory of electron-phonon interaction in correlated electron materials: general results and application to doped Mott insulators

A. Deppeler·A. J. Millis
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Abstract

The dynamical mean-field method is used to formulate a computationally tractable theory of electron-phonon interactions in systems with arbitrary local electron-electron interactions in the physically relevant adiabatic limit of phonon frequency small compared to electron bandwidth or interaction scale. As applications, the phonon contribution to the effective mass of a carrier in a lightly doped Mott insulator is determined and the phase separation boundary is discussed.

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A. Deppeler, A. J. Millis. 2002-05-09. Dynamical mean-field theory of electron-phonon interaction in correlated electron materials: general results and application to doped Mott insulators. https://arxiv.org/abs/cond-mat/0204617

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