Tight-binding optical polaron in the adiabatic limit

Y. Lépine, R. Gutiérrez

Research output: Contribution to journalArticlepeer-review


The problem of a tight-binding polaron interacting with the longitudinal optical phonons in a polar crystal is investigated in the adiabatic limit. A Pekar-type variational wavefunction, including a tight-binding electronic part is used in order to get the ground-state energy of the system. We find and characterize two limiting cases: a self-trapped state for large coupling and a band state for smaller electron-phonon interactions. The continuum Fröhlich limit can also be found from our approach.

Original languageEnglish (US)
Pages (from-to)155-160
Number of pages6
JournalSolid State Communications
Issue number2
StatePublished - Jan 1993

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry


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