Surface-hopping dynamics of a spin-boson system

Publication Type:

Journal Article

Authors:

Source:

Journal of Chemical Physics, Volume 116, Number 6, p.2346-2353 (2002)

URL:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037040034&doi=10.1063%2f1.1433502&partnerID=40&md5=fa1d8b0f6cb49c480a565cb9fe7e13e6

Keywords:

Algorithms, Computer Simulation, Equations of motion, Mathematical models, Monte Carlo methods, Phase transitions, Quantum Theory, Spin-boson systems, Surface-hopping dynamics

Abstract:

The surface-hopping scheme was used to solve the spin-boson model within the framework of quantum-classical dynamics. The quantum-classical equation of motion was represented on an adiabatic basis and its solution was derived from an ensemble of trajectories which underwent nonadiabatic transitions and evolved coherently on the adiabatic surfaces. Monte Carlo simulation method was applied to a spin-boson system with a harmonic bath composed of ten oscillators with an ohmic spectral density. The results obtained were found to be in accord with previous numerical results.

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