Quantum Phase Transitions in the Bosonic Single-Impurity Anderson Model
| dc.creator | Lee, Hyun-Jung | |
| dc.creator | Bulla, Ralf | |
| dc.date | 2006-06-13 | |
| dc.date.accessioned | 2026-07-07T08:00:05Z | |
| dc.date.available | 2026-07-07T08:00:05Z | |
| dc.description | We consider a quantum impurity model in which a bosonic impurity level is coupled to a non-interacting bosonic bath, with the bosons at the impurity site subject to a local Coulomb repulsion U. Numerical renormalization group calculations for this bosonic single-impurity Anderson model reveal a zero-temperature phase diagram where Mott phases with reduced charge fluctuations are separated from a Bose-Einstein condensed phase by lines of quantum critical points. We discuss possible realizations of this model, such as atomic quantum dots in optical lattices. Furthermore, the bosonic single-impurity Anderson model appears as an effective impurity model in a dynamical mean-field theory of the Bose-Hubbard model. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0606325 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0606325 | |
| dc.identifier | Eur. Phys. J. B 56, 199 (2007) | |
| dc.identifier | doi:10.1140/epjb/e2007-00118-3 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/128596 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Other Condensed Matter | |
| dc.title | Quantum Phase Transitions in the Bosonic Single-Impurity Anderson Model | |
| dc.type | text |