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Including quantum decoherence in surface hopping

delete2010-10-06
delete367
PRE
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G
Giovanni Granucci *
M
Maurizio Persico
A
Alberto Zoccante
DOI:10.1063/1.3489004delete
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摘要

摘要

En 中文
In this paper we set up a method called overlap decoherence correction (ODC) to take into account the quantum decoherence effect in a surface hopping framework. While keeping the standard surface hopping approach based on independent trajectories, our method allows to account for quantum decoherence by evaluating the overlap between frozen Gaussian wavepackets, the time evolution of which is obtained in an approximate way. The ODC scheme mainly depends on the parameter sigma, which is the Gaussian width of the wavepackets. The performance of the ODC method is tested versus full quantum calculations on three model systems, and by comparison with full multiple spawning (FMS) results for the S(1)-> S(0) decay in the azobenzene molecule. (C) 2010 American Institute of Physics. [doi:10.1063/1.3489004]
Keyword:
MOLECULAR-DYNAMICS SIMULATIONS
EXCITED-STATE DYNAMICS
NONADIABATIC DYNAMICS
PHOTODISSOCIATION DYNAMICS
EVOLUTION
ELECTRON
SYSTEMS
DECAY
TRANSITIONS
AZOBENZENE
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期刊

Journal of Chemical Physics 封面图
Journal of Chemical Physics
IF:
3.1
论文数:
7.2W
被引数:
23.2W

机构

U
University of Pisa
学者数:
3.1W
论文数: 2.4W
被引数: 2.4W
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