111 citations · 450 across the 7 of their papers we have counts for
6 papers
Interplay between electron-phonon and Coulomb interactions in cuprates
O. Gunnarsson, O. Rösch
Evidence for strong electron-phonon coupling in high-Tc cuprates is reviewed, with emphasis on the electron and phonon spectral functions. Effects due to the interplay between the…
Electron-phonon coupling in the self-consistent Born approximation of the t-J model
O. Gunnarsson, O. Rösch
We study an undoped t-J model with electron-phonon interaction using the self-consistent Born approximation (SCBA). By neglecting vertex corrections, the SCBA solves a boson-holon…
Dispersion of incoherent spectral features in systems with strong electron-phonon coupling
O. Rösch, O. Gunnarsson
We study (inverse) photoemission from systems with strong coupling of doped carriers to phonons. Using an adiabatic approximation, we develop a method for calculating spectra. This…
Electron-phonon interaction in the three-band model
O. Rösch, O. Gunnarsson
We study the half-breathing phonon in the three-band model of a high temperature superconductor, allowing for vibrations of atoms and resulting changes of hopping parameters. Two d…
Apparent electron-phonon interaction in strongly correlated systems
O. Rösch, O. Gunnarsson
We study the interaction of electrons with phonons in strongly correlated solids, having high-T_c cuprates in mind. Using sum-rules, we show that the apparent strength of this inte…
Electron-phonon interaction in the t-J model
O. Rösch, O. Gunnarsson
We derive a t-J model with electron-phonon coupling from the three-band model, considering modulation of both hopping and Coulomb integrals by phonons. While the modulation of the…