Physics – Quantum Physics
Scientific paper
2005-11-24
Physics
Quantum Physics
Manuscript accepted by The Journal of Chemical Physics
Scientific paper
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.
No associations
LandOfFree
Quantum-Classical Dynamics of Wave Fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum-Classical Dynamics of Wave Fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum-Classical Dynamics of Wave Fields will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-424797