Journal
CHEMICAL PHYSICS
Volume 442, Issue -, Pages 26-30Publisher
ELSEVIER
DOI: 10.1016/j.chemphys.2014.01.011
Keywords
Non-adiabatic coupling; Wave-packet dynamics; Rabi oscillations
Funding
- DFG [FOR 1809]
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We regard the wave-packet dynamics in two electronic states which interact via a constant coupling element. Performing numerical calculations it is found that the time-dependent populations exhibit oscillatory variations with two characteristic periods. Whereas, as expected, one period is determined by the vibrational motion, it is shown that Rabi-type oscillations occur which are influenced by the parameters of the potential energy curves, the coupling and the amplitudes in the two states on one hand, and by the nuclear motion on the other. An analysis of the numerical results is performed within various levels of approximation. (C) 2014 Elsevier B.V. All rights reserved.
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