Dynamical Bottlenecks to Intramolecular Energy Flow

2007/08/14 by Rytis Paškauskas, R. Paškauskas, C. Chandré +2 · 2 citations
Physics and Astronomy · #Quantum chaos and dynamical systems #Quantum, superfluid, helium dynamics #Spectroscopy and Quantum Chemical Studies #nlin.CD #physics.chem-ph

paper · pdf · doi:10.1103/physrevlett.100.083001

published as Physical Review Letters 100, 083001 (2008) · 4 pages, 4 figures

arxiv created 2007/08/14 · openalex publication_date 2008/02/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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.

Citations

• Long-time correlations in the stochastic regime
• Invariant Manifolds

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