Sticky obstacles to intramolecular energy flow

Details Sticky obstacles to intramolecular energy flow Sticky obstacles to intramolecular energy flow

2007-08-14

arxiv.org/abs/0708.1893v1

Physical Review Letters 100, 083001 (2008)

Nonlinear Sciences

Chaotic Dynamics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.100.083001

Vibrational energy flows unevenly in molecules, repeatedly going back and forth between trapping and roaming. We identify bottlenecks between diffusive and chaotic behavior, and describe generic mechanisms of these transitions, taking the carbonyl sulphide molecule OCS as a case study. The bottlenecks are found to be lower-dimensional tori; their bifurcations and unstable manifolds govern the transition mechanisms.

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