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Exact Results and Conjectures on the Adiabatic Holstein-Hubbard Model at Large Electron-Phonon Coupling

  • Serge Aubry
Chapter
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Part of the NATO ASI Series book series (NSSB, volume 343)

Abstract

Some of the essential aspects of the propagation of electrons in solids are modelled by the simple Holstein-Hubbard model. It is a one band model that involves schematically the basic interactions between the electrons and the lattice. The Coulomb interactions of the electrons with the ions of the lattice are represented by linear on-site electron phonon couplings while the direct Coulomb electron-electron interactions are represented only by their local component as on-site Hubbard repulsions. The direct interactions between the ions of the lattice, including their Coulomb interactions, are represented phenomenologically by an elastic deformation potential.

Keywords

Charge Density Wave Adiabatic Approximation Electron Phonon Coupling Small Polaron Spin Density Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Serge Aubry
    • 1
  1. 1.Laboratoire Léon Brillouin (CEA-CNRS)CE SaclayGif-sur-Yvette CédexFrance

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