Mass and frequency renormalization for quadratic electron-phonon coupling

O. Entin-Wohlman*, H. Gutfreund, M. Weger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The effect of an electron-phonon coupling quadratic in the phonon operators upon the effective electronic mass and the phonon frequency is calculated to second order in perturbation theory. The renormalization effects increase linearly with the temperature, but, for extended molecules, that of the electronic mass might be considerably larger than that of the phonon frequency. The results are discussed in the context of organic metals.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalSolid State Communications
Issue number1
StatePublished - Apr 1983


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