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On the correlation effects in the Landau-Pekar polaron method

✍ Scribed by P. Sikivie; E. Kartheuser; R. Evrard

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
500 KB
Volume
44
Category
Article
ISSN
0370-1972

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✦ Synopsis

Abstract

The conservation of total angular momentum is considered in detail for polarons, using an expansion of the polarization field into spherical waves. This formalism is used to improve the Landau‐Pekar approximation, taking the electron‐phonon correlations partially into account. A value 10 to 20% lower is obtained for the polaron ground state energy for values of the coupling constant Ξ± ranging from 8 to 5.

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