This article reviews the theory of electron-phonon interactions in solids from the point of view
of ab initio calculations. While the electron-phonon interaction has been studied for almost a …

Self-localized nonlinear excitations (solitons, polarons, and bipolarons) are fundamental
and inherent features of quasi-one-dimensional conducting polymers. Their signatures are …

We study electronic excitations in long polyenes, ie, in one-dimensional strongly correlated
electron systems which are neither infinite nor small. The excitations are described within …

The long-distance decay of correlation functions in the one-dimensional Hubbard model is
determined for arbitrary band filling and correlation strength, using the exact solution of Lieb …

A brief introduction to the bosonization method for interacting one-dimensional fermion
systems is given. Using these results, the long-distance decay of correlation functions in the …

Translational invariance requires that the electron density operator is not diagonal in a
Wannier representation. We show that this leads to important terms in the electron-electron …

The extended Hubbard model in one dimension is studied for half-filled bands using a
continuum theory based on the Luttinger model. Interactions going beyond the Luttinger …

We present direct measurements of the optical absorption in undoped and ammoniatreated
polyacetylene utilizing the technique of photothermal deflection spectroscopy. Our spectra …

The infinite polyyne chain,(C? C)∞, or polyyne, is interpreted as a Peierls distorted one-
dimensional metal with strong intrinsic electron-phonon coupling at the half-filled band level …

Abstract We study a Hubbard Hamiltonian, including a quite general nearest-neighbor
interaction, parametrized by repulsion V, exchange interactions J z, J⊥, bond-charge …