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Title: Tearing Instability in Alfven and Kinetic-Alfven Turbulence

Abstract

Recently, it has been realized that magnetic plasma turbulence and magnetic field reconnection are inherently related phenomena. Turbulent fluctuations generate regions of sheared magnetic field that become unstable to the tearing instability and reconnection, thus modifying turbulence at the corresponding scales. In this contribution, we give a brief review of some recent results on tearing-mediated magnetic turbulence.We illustrate the main ideas of this rapidly developing field of study by concentrating on two important examples—magnetohydrodynamic Alfven turbulence and small-scale kinetic-Alfven turbulence. Due to various potential applications of these phenomena in space physics and astrophysics, we specifically try not to overload the text by heavy analytical derivations but rather present a qualitative discussion accessible to a non-expert in the theories of turbulence and reconnection.

Authors:
;
Publication Date:
DOE Contract Number:  
SC0018266; SC0016215
Research Org.:
Univ. of Wisconsin, Madison, WI (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 79 ASTRONOMY AND ASTROPHYSICS
OSTI Identifier:
1889410
DOI:
https://doi.org/10.7910/DVN/QXBFG2

Citation Formats

Boldyrev, S., and Loureiro, N. F. Tearing Instability in Alfven and Kinetic-Alfven Turbulence. United States: N. p., 2022. Web. doi:10.7910/DVN/QXBFG2.
Boldyrev, S., & Loureiro, N. F. Tearing Instability in Alfven and Kinetic-Alfven Turbulence. United States. doi:https://doi.org/10.7910/DVN/QXBFG2
Boldyrev, S., and Loureiro, N. F. 2022. "Tearing Instability in Alfven and Kinetic-Alfven Turbulence". United States. doi:https://doi.org/10.7910/DVN/QXBFG2. https://www.osti.gov/servlets/purl/1889410. Pub date:Fri Jun 17 00:00:00 EDT 2022
@article{osti_1889410,
title = {Tearing Instability in Alfven and Kinetic-Alfven Turbulence},
author = {Boldyrev, S. and Loureiro, N. F.},
abstractNote = {Recently, it has been realized that magnetic plasma turbulence and magnetic field reconnection are inherently related phenomena. Turbulent fluctuations generate regions of sheared magnetic field that become unstable to the tearing instability and reconnection, thus modifying turbulence at the corresponding scales. In this contribution, we give a brief review of some recent results on tearing-mediated magnetic turbulence.We illustrate the main ideas of this rapidly developing field of study by concentrating on two important examples—magnetohydrodynamic Alfven turbulence and small-scale kinetic-Alfven turbulence. Due to various potential applications of these phenomena in space physics and astrophysics, we specifically try not to overload the text by heavy analytical derivations but rather present a qualitative discussion accessible to a non-expert in the theories of turbulence and reconnection.},
doi = {10.7910/DVN/QXBFG2},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {6}
}

Works referencing / citing this record:

Tearing Instability in Alfvén and Kinetic‐Alfvén Turbulence
journal, September 2020