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On the excited states of a symmetrical polaron model

✍ Scribed by J. Devreese; R. Evrard

Publisher
Elsevier Science
Year
1964
Weight
159 KB
Volume
11
Category
Article
ISSN
0031-9163

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A new decoupling approximation has been introduced in the Green's function equation-of-motion analysis of the large polaron. Considering those Feynman diagrams which correspond to the two-phonon Tamm-Dancoff approximations an expression for the polaron ground state energy has been derived. It is fou