A density matrix approach to the dynamical properties of a two-site Holstein model
| dc.creator | Paganelli, Simone | |
| dc.creator | Ciuchi, Sergio | |
| dc.date | 2007-10-22 | |
| dc.date.accessioned | 2026-07-07T09:45:12Z | |
| dc.date.available | 2026-07-07T09:45:12Z | |
| dc.description | The two-site Holstein model represents a first non-trivial paradigm for the interaction between an itinerant charge with a quantum oscillator, a very common topic in different ambits. Exact results can be achieved both analytically and numerically, nevertheless it can be useful to compare them with approximate, semi-classical techniques in order to highlight the role of quantum effects. In this paper we consider the adiabatic limit in which the oscillator is very much slow than the electron. A density matrix approach is introduced for studying the charge dynamics and the exact results are compared with two different approximations: a Born-Oppenheimer-based Static Approximation for the oscillator (SA) and a Quantum-classical (QC) dynamics. | |
| dc.identifier | https://arxiv.org/abs/0710.4096 | |
| dc.identifier | http://arxiv.org/abs/0710.4096 | |
| dc.identifier | Eur. Phys. J. ST 160, 343 (2008) | |
| dc.identifier | doi:10.1140/epjst/e2008-00737-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/163119 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | A density matrix approach to the dynamical properties of a two-site Holstein model | |
| dc.type | text |