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Journal of Applied Nonlinear Dynamics
Miguel A. F. Sanjuan (editor), Albert C.J. Luo (editor)
Miguel A. F. Sanjuan (editor)

Department of Physics, Universidad Rey Juan Carlos, 28933 Mostoles, Madrid, Spain


Albert C.J. Luo (editor)

Department of Mechanical and Industrial Engineering, Southern Illinois University Ed-wardsville, IL 62026-1805, USA

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Time-averaged Potential for Molecular Ions in Three-Dimensional Radio Frequency Traps

Journal of Applied Nonlinear Dynamics 10(3) (2021) 471--477 | DOI:10.5890/JAND.2021.09.008

Semyon Rudyi , Yuri Rozhdestvensky

ITMO University, Kronverksky Pr. 49, bldg. A, St. Petersburg, 197101, Russia

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This study deals with distinctive features of forming an effective potential for molecular ions and diatomic structures in three-dimensional radio-frequency traps. A simple model is proposed, which demonstrates the transition from vibration dynamics of micro-motion and micro-rotation to the time-averaged pseudopotential and rotation potential. It shows the existence of equilibrium states of a dimer molecule, which determine the stable orientation of an ion within the space of a three-dimensional Paul ion trap. Stable states and orbits for symmetrical and asymmetrical configurations were found.


This study was supported by Theoretical Physics and Mathematics Advancement Foundation ``BASIS'' 19-1-5-136-1.


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