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Title: Nonlinear structures and anomalous transport in partially magnetized E×B plasmas

Nonlinear dynamics of the electron-cyclotron instability driven by the electron E x B current in a crossed electric and magnetic field is studied. In the nonlinear regime, the instability proceeds by developing a large amplitude coherent wave driven by the energy input from the fundamental cyclotron resonance. Further evolution shows the formation of the long wavelength envelope akin to the modulational instability. Simultaneously, the ion density shows the development of a high-k content responsible for wave focusing and sharp peaks on the periodic cnoidal wave structure. Here, it is shown that the anomalous electron transport (along the direction of the applied electric field) is dominated by the long wavelength part of the turbulent spectrum.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ;  [2] ;  [3] ; ORCiD logo [3]
  1. Univ. of Saskatchewan, Saskatoon, SK (Canada)
  2. Univ. of Alberta, Edmonton, AB (Canada). Centennial Centre for Interdisciplinary Science
  3. Princeton Univ., NJ (United States); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Publication Date:
Grant/Contract Number:
FA9550-15-1-0226
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; Journal Issue: 1; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org:
USDOE; Natural Sciences and Engineering Research Council of Canada (NSERC); US Air Force Office of Scientific Research (AFOSR)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1433305

Janhunen, Salomon, Smolyakov, Andrei, Chapurin, Oleksandr, Sydorenko, Dmytro, Kaganovich, Igor, and Raitses, Yevgeni. Nonlinear structures and anomalous transport in partially magnetized E×B plasmas. United States: N. p., Web. doi:10.1063/1.5001206.
Janhunen, Salomon, Smolyakov, Andrei, Chapurin, Oleksandr, Sydorenko, Dmytro, Kaganovich, Igor, & Raitses, Yevgeni. Nonlinear structures and anomalous transport in partially magnetized E×B plasmas. United States. doi:10.1063/1.5001206.
Janhunen, Salomon, Smolyakov, Andrei, Chapurin, Oleksandr, Sydorenko, Dmytro, Kaganovich, Igor, and Raitses, Yevgeni. 2017. "Nonlinear structures and anomalous transport in partially magnetized E×B plasmas". United States. doi:10.1063/1.5001206.
@article{osti_1433305,
title = {Nonlinear structures and anomalous transport in partially magnetized E×B plasmas},
author = {Janhunen, Salomon and Smolyakov, Andrei and Chapurin, Oleksandr and Sydorenko, Dmytro and Kaganovich, Igor and Raitses, Yevgeni},
abstractNote = {Nonlinear dynamics of the electron-cyclotron instability driven by the electron E x B current in a crossed electric and magnetic field is studied. In the nonlinear regime, the instability proceeds by developing a large amplitude coherent wave driven by the energy input from the fundamental cyclotron resonance. Further evolution shows the formation of the long wavelength envelope akin to the modulational instability. Simultaneously, the ion density shows the development of a high-k content responsible for wave focusing and sharp peaks on the periodic cnoidal wave structure. Here, it is shown that the anomalous electron transport (along the direction of the applied electric field) is dominated by the long wavelength part of the turbulent spectrum.},
doi = {10.1063/1.5001206},
journal = {Physics of Plasmas},
number = 1,
volume = 25,
place = {United States},
year = {2017},
month = {12}
}