Abstract:
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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Received 13 May 1998
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De Filippis, G., Cataudella, V. & Iadonisi, G. Normal state properties of an interacting large polaron gas. Eur. Phys. J. B 8, 339–351 (1999). https://doi.org/10.1007/s100510050699
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DOI: https://doi.org/10.1007/s100510050699