Ground and excited states of the bipolaron in two and three dimensions
| dc.creator | Ruan, Y. H. | |
| dc.creator | Chen, Q. H. | |
| dc.creator | Bonitz, M. | |
| dc.date | 2005-09-09 | |
| dc.date.accessioned | 2026-07-07T03:06:34Z | |
| dc.date.available | 2026-07-07T03:06:34Z | |
| dc.description | The properties of large bipolarons in two and three dimensions are investigated by averaging over the relative wavefunction of the two electrons and using the Lee-Low-Pines-Huybrechts variational method. We obtain the ground-state (GS) and excited-state energies of the Fröhlich bipolaron for the whole range of electron-phonon coupling constants. Furthermore, we calculate the energies of the first relaxed excited state (RES) and Franck-Condon (FC) excited state of the bipolaron. Compared with the FC state, the first RES has a lower energy. Our results for the GS and RES energies are lower than those obtained before by the Landau-Pekar method in the whole coupling regime. | |
| dc.description | 19 pages, 5 figures (including 8 parts) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0509233 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0509233 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26855 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Statistical Mechanics | |
| dc.title | Ground and excited states of the bipolaron in two and three dimensions | |
| dc.type | text |