Dispersion of incoherent spectral features in systems with strong electron-phonon coupling
| dc.creator | Rösch, O. | |
| dc.creator | Gunnarsson, O. | |
| dc.date | 2004-10-11 | |
| dc.date.accessioned | 2026-07-07T03:01:23Z | |
| dc.date.available | 2026-07-07T03:01:23Z | |
| dc.description | 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 method is particularly simple for systems where the electron-phonon coupling can be neglected in the initial state, e.g., the undoped t-J model. The theory then naturally explains why the electron-phonon coupling just leads to a broadening of spectra calculated without electron-phonon coupling, without changing the dispersion. This is in agreement with recent angle-resolved photoemission spectroscopy (ARPES) on undoped cuprates, and it supports the interpretation in terms of strong electron-phonon interaction. The theory also shows that for systems with strong electron-phonon coupling in the initial state, the result cannot in general be related to the spectrum obtained without electron-phonon coupling. | |
| dc.description | 8 pages, 8 eps figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0410247 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0410247 | |
| dc.identifier | Eur. Phys. J. B 43, 11 (2005) | |
| dc.identifier | doi:10.1140/epjb/e2005-00022-x | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/25041 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Materials Science | |
| dc.title | Dispersion of incoherent spectral features in systems with strong electron-phonon coupling | |
| dc.type | text |