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Updated: Jan 22, 2026
11:21
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
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Diocotron instability in ultracold plasma
E V Vikhrov1, B B Zelener1, B V Zelener1
1Joint Institute for High Temperatures, of the Russian Academy of Sciences, Izhorskaya Street 13, Building 2, Moscow 125412, Russia.
Physical Review. E
|January 21, 2026
Summary
Ultracold xenon plasma simulations reveal two electron loss pathways: cloud splitting and beam formation. The electron beam, affected by diocotron instability, drifts at a constant velocity. These findings may inform electron microscopy applications.
Area of Science:
- Plasma Physics
- Computational Physics
Background:
- Understanding electron dynamics in ultracold plasmas is crucial for fundamental physics.
- External electric and magnetic fields significantly influence plasma behavior.
Purpose of the Study:
- To investigate electron loss mechanisms in ultracold xenon plasma under crossed electric and magnetic fields.
- To analyze the behavior of electron clouds and beams during simulations.
Main Methods:
- Molecular dynamics simulations were employed.
- Constant homogeneous crossed electric and magnetic fields were applied.
Main Results:
- Two distinct electron loss mechanisms were identified: electron cloud splitting into two lobes and electron beam formation.
- The electron beam exhibited deformation due to diocotron instability.
- The beam drifted with a constant velocity along the [E×B] direction.
Conclusions:
- The study provides a qualitative analysis of conditions leading to observed electron loss mechanisms.
- The simulation results offer potential insights for applications in electron microscopy.
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