Mobile Bipolaron
| dc.creator | Bonca, J. | |
| dc.creator | Katrasnik, T. | |
| dc.creator | Trugman, S. A. | |
| dc.date | 2000-01-21 | |
| dc.date.accessioned | 2026-07-07T02:36:37Z | |
| dc.date.available | 2026-07-07T02:36:37Z | |
| dc.description | We explore the properties of the bipolaron in a 1D Holstein-Hubbard model with dynamical quantum phonons. Using a recently developed variational method combined with analytical strong coupling calculations, we compute correlation functions, effective mass, bipolaron isotope effect and the phase diagram. The two site bipolaron has a significantly reduced mass and isotope effect compared to the on-site bipolaron, and is bound in the strong coupling regime up to twice the Hubbard U naively expected. The model can be described in this regime as an effective t-J-V model with nearest neighbor repulsion. These are the most accurate bipolaron calculations to date. | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0001325 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0001325 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15986 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Mobile Bipolaron | |
| dc.type | text |