Quantum-Classical Dynamics of Wave Fields
| dc.creator | Sergi, Alessandro | |
| dc.date | 2005-11-24 | |
| dc.date | 2007-01-10 | |
| dc.date.accessioned | 2026-07-07T07:39:31Z | |
| dc.date.available | 2026-07-07T07:39:31Z | |
| dc.description | An approach to the quantum-classical mechanics of phase space dependent operators, which has been proposed recently, is remodeled as a formalism for wave fields. Such wave fields obey a system of coupled non-linear equations that can be written by means of a suitable non-Hamiltonian bracket. As an example, the theory is applied to the relaxation dynamics of the spin-boson model. In the adiabatic limit, a good agreement with calculations performed by the operator approach is obtained. Moreover, the theory proposed in this paper can take nonadiabatic effects into account without resorting to surface-hopping approximations. Hence, the results obtained follow qualitatively those of previous surface-hopping calculations and increase by a factor of (at least) two the time length over which nonadiabatic dynamics can be propagated with small statistical errors. Moreover, it is worth to note that the dynamics of quantum-classical wave fields here proposed is a straightforward non-Hamiltonian generalization of the formalism for non-linear quantum mechanics that Weinberg introduced recently. | |
| dc.description | Manuscript accepted by The Journal of Chemical Physics | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0511229 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0511229 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121476 | |
| dc.subject | Quantum Physics | |
| dc.title | Quantum-Classical Dynamics of Wave Fields | |
| dc.type | text |