| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1899991 | Physica D: Nonlinear Phenomena | 2006 | 7 Pages |
Abstract
We derive the bipolaron phase diagram of the one-dimensional adiabatic Holstein-Hubbard model in the strong coupling (small hopping) limit. We show the existence of a threshold value for the Coulomb interaction beyond which the ground state of the system consists of two free polarons (infinitely far apart from each other). This result, obtained by means of an exact perturbative expansion, cannot be reproduced by the usual exponential ansatz for the wave function.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
J. Dorignac, J. Zhou, D.K. Campbell,