Dynamics on the Double Morse Potential: A Paradigm for Roaming Reactions with no Saddle Points

Barry K. Carpenter, Gregory S. Ezra, Stavros C. Farantos, Zeb C. Kramer, Stephen Wiggins

Research output: Contribution to journalArticle (Academic Journal)peer-review

3 Citations (Scopus)
244 Downloads (Pure)

Abstract

In this paper we analyze a two degree of freedom Hamiltonian system constructed from two planar Morse potentials. The resulting potential energy surface has two potential wells surrounded by an unbounded flat region containing no critical points. In addition, the model has an index one saddle between the potential wells. We study the dynamical mechanisms underlying transport between the two potential wells, with emphasis on the role of the flat region surrounding the wells. The model allows us to probe many of the features of the roaming mechanism whose reaction dynamics are of current interest in the chemistry community.
Original languageEnglish
Pages (from-to)60–79
Number of pages20
JournalRegular and Chaotic Dynamics
Volume23
Issue number1
Early online date5 Feb 2018
DOIs
Publication statusPublished - 2018

Bibliographical note

Cover issue date: January 2018

Keywords

  • physics.chem-ph
  • math.DS
  • nlin.CD

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