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On the ground state energy of a polaron

✍ Scribed by K.G. Chakraborty

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
288 KB
Volume
27
Category
Article
ISSN
0009-2614

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✦ Synopsis

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 found that in the strong coupling

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