Model study of photoinduced structural changes in molecular chains
- 20 August 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (8) , 984-987
- https://doi.org/10.1103/physrevlett.65.984
Abstract
Conformational dynamics of donor-acceptor-modified molecular chains is examined within a tight-binding scheme in adiabatic approximation. The topology of Born-Oppenheimer hypersurfaces in configuration space is shown to control the possible structural changes. Irrespective of chain length, the photoinduced structural quantum dynamics can be mapped approximately onto an effective three-level system that is coupled to the light field and a bath and treated by a generalized master equation.Keywords
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