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Mechanism and Experimental Observability of Global Switching Between Reactive and Nonreactive Coordinates at High Total Energies

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タイトル: Mechanism and Experimental Observability of Global Switching Between Reactive and Nonreactive Coordinates at High Total Energies
著者: Teramoto, Hiroshi 著作を一覧する
Toda, Mikito 著作を一覧する
Takahashi, Masahiko 著作を一覧する
Kono, Hirohiko 著作を一覧する
Komatsuzaki, Tamiki 著作を一覧する
発行日: 2015年 8月28日
出版者: American Physical Society
誌名: Physical Review Letters
巻: 115
号: 9
開始ページ: 093003-1
終了ページ: 093003-5
出版社 DOI: 10.1103/PhysRevLett.115.093003
抄録: We present a mechanism of global reaction coordinate switching, namely, a phenomenon in which the reaction coordinate dynamically switches to another coordinate as the total energy of the system increases. The mechanism is based on global changes in the underlying phase space geometry caused by a switching of dominant unstable modes from the original reactive mode to another nonreactive mode in systems with more than 2 degrees of freedom. We demonstrate an experimental observability to detect a reaction coordinate switching in an ionization reaction of a hydrogen atom in crossed electric and magnetic fields. For this reaction, the reaction coordinate is a coordinate along which electrons escape and its switching changes the escaping direction from the direction of the electric field to that of the magnetic field and, thus, the switching can be detected experimentally by measuring the angle-resolved momentum distribution of escaping electrons.
Rights: © 2015 American Physical Society
資料タイプ: article
URI: http://hdl.handle.net/2115/63191
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 寺本 央

 

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