Model Calculation of Electron-Phonon Couplings in a Dimer with a Non-Degenerate Orbital

Abstract

We evaluate all the electron-phonon couplings derived from the one-body electronic interactions, in both the adiabatic and extreme non-adiabatic limit, for a dimer with a non-degenerate orbital built from atomic wave functions of Gaussian shape. We find largely different values of the coupling parameters in the two cases, as well as different expressions of the corresponding terms in the Hamiltonian.

5 postscript figures

References in corpus (1)

• Hole pairing and phonon dynamics in generalized 2D $t-J-$Holstein models

Cited by in corpus (3)

• $H_2$ and $(H_2{)}_2$ molecules with an ab initio optimization of wave functions in correlated state: Electron-proton couplings and intermolecular microscopic parameters
• Electronic states, Mott localization, electron-lattice coupling, and dimerization for correlated one-dimensional systems. II
• Distance-depending electron-phonon interactions from one- and two-body electronic terms in a dimer