Discussion of the principal methods of polaron theory

R. Evrard, J. Devreese

Research outputpeer-review


The concept of a polaron is introduced in a qualitative way and the most important theories are briefly discussed.
The results on the self-energy of the polaron derived by Lee, Low and Pines
are obtained here by generalizing the treatment of the interaction between a
particle with an infinite mass and a scalar field.
It is shown that in the Feynman theory of the polaron implicitly a coordinate defining approximately the "centre" of the polaron is incorporated.
The validity of the different methods is then discussed on the basis of
an exactly soluble polaron model.
Original languageEnglish
PublisherSCK CEN
Number of pages21
StatePublished - Sep 1963
Externally publishedYes

Publication series

NameSCK CEN Reports
PublisherSCK CEN

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