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Title: Plasma electron hole kinematics. I. Momentum conservation

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4959870· OSTI ID:1467857
ORCiD logo [1];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center

Here, we analyse the kinematic properties of a plasma electron hole: a non-linear self-sustained localized positive electric potential perturbation, trapping electrons, which behaves as a coherent entity. When a hole accelerates or grows in depth, ion and electron plasma momentum is changed both within the hole and outside, by an energization process we call jetting. We present a comprehensive analytic calculation of the momentum changes of an isolated general one-dimensional hole. The conservation of the total momentum gives the hole's kinematics, determining its velocity evolution. Our results explain many features of the behavior of hole speed observed in numerical simulations, including self-acceleration at formation, and hole pushing and trapping by ion streams.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Science Foundation (NSF)
Grant/Contract Number:
SC0010491
OSTI ID:
1467857
Alternate ID(s):
OSTI ID: 1306684
Journal Information:
Physics of Plasmas, Vol. 23, Issue 8; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (4)

Electron phase-space hole transverse instability at high magnetic field journal September 2019
Electron holes in phase space: What they are and why they matter journal May 2017
A study of the stability properties of Sagdeev solutions in the ion-acoustic regime using kinetic simulations journal July 2018
A study of the stability properties of Sagdeev solutions in the ion-acoustic regime using kinetic simulations preprint January 2018