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ЖУРНАЛЫ // Regular and Chaotic Dynamics // Архив

Regul. Chaotic Dyn., 2021, том 26, выпуск 6, страницы 763–774 (Mi rcd1145)

Эта публикация цитируется в 5 статьях

Regular Papers

The Time Evolution of the Trajectories After the Selectivity in a Symmetric Potential Energy Surface with a Post-transition-state Bifurcation

Douglas Haigh, Matthaios Katsanikas, Makrina Agaoglou, Stephen Wiggins

School of Mathematics, University of Bristol, Fry Building, Woodland Road, BS8 1UG Bristol, United Kingdom

Аннотация: Selectivity is an important phenomenon in chemical reaction dynamics. This can be quantified by the branching ratio of the trajectories that visit one or the other well to the total number of trajectories in a system with a potential with two sequential index-1 saddles and two wells (top well and bottom well). In our case, the relative branching ratio is 1:1 because of the symmetry of our potential energy surface. The mechanisms of transport and the behavior of the trajectories in this kind of systems have been studied recently. In this paper we study the time evolution after the selectivity as energy varies using periodic orbit dividing surfaces. We investigate what happens after the first visit of a trajectory to the region of the top or the bottom well for different values of energy. We answer the natural question: What is the destiny of these trajectories?

Ключевые слова: phase space structure, dividing surfaces, chemical physics, periodic orbits, homoclinic and heteroclinic orbits.

MSC: 37N99, 70K44, 70H05, 70H07, 34C45, 34C37

Поступила в редакцию: 16.03.2021
Принята в печать: 19.10.2021

Язык публикации: английский

DOI: 10.1134/S1560354721060137



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