Phys. Rev. Lett. 100, 083001 (2008) [4 pages]Dynamical Bottlenecks to Intramolecular Energy FlowReceived 10 August 2007; published 27 February 2008 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 sulfide molecule OCS as a case study. The bottlenecks are found to be lower-dimensional tori; their bifurcations and unstable manifolds govern the transition mechanisms. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.083001
DOI:
10.1103/PhysRevLett.100.083001
PACS:
33.15.Hp, 34.10.+x, 82.20.Db, 82.20.Nk
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