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Dynamical Switching of a Reaction Coordinate to Carry the System through to a Different Product State at High Energies
| Title: | Dynamical Switching of a Reaction Coordinate to Carry the System through to a Different Product State at High Energies |
| Authors: | Teramoto, Hiroshi Browse this author | | Toda, Mikito Browse this author | | Komatsuzaki, Tamiki Browse this author |
| Issue Date: | 4-Feb-2011 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review Letters |
| Volume: | 106 |
| Issue: | 5 |
| Start Page: | 054101 |
| Publisher DOI: | 10.1103/PhysRevLett.106.054101 |
| PMID: | 21405398 |
| Abstract: | Questions of how the nature of a reaction coordinate that dominates the reaction ceases to exist and whether some new features emerge as an increase of total energy of systems are investigated for many degrees of freedom Hamiltonian systems. As a model system, a hydrogen atom in crossed electric and magnetic fields is scrutinized. It is shown that, when the total energy increases, the reaction coordinate no longer dominates the reaction as did at the lower energies. In turn, a new reaction coordinate emerges, connecting totally different reactant and product states. Furthermore, depending on which parts of the phase space the system traverses through the saddle, the system nonuniformly experiences the switching of the reaction coordinate leading to the different product state. The universal mechanism of the cessation and the switching of the reaction coordinate at high energy regimes above the saddle is investigated. |
| Rights: | ©2011 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/44959 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 寺本 央
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