Normal state properties of an interacting large polaron gas

Details Normal state properties of an interacting large polaron gas Normal state properties of an interacting large polaron gas

1998-10-27

arxiv.org/abs/cond-mat/9810365v3

Physics

Condensed Matter

26 pages, 12 figures. To appear on European Physical Journal B

Scientific paper

10.1007/s100510050699

A simple approach to the many-polaron problem for both weak and intermediate electron-phonon coupling and valid for densities much smaller than those typical of metals is presented. Within the model the total energy, the collective modes and the single-particle properties are studied and compared with the available theories. It is shown the occurrence of a charge density wave instability in the intermediate coupling regime.

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