scholarly journals Erratum: “Excitation of electromagnetic whistler waves due to a parametric interaction between magnetosonic and lower oblique resonance modes in a cold, magnetized plasma” [Phys. Plasmas 25, 062310 (2018)]

2018 ◽  
Vol 25 (8) ◽  
pp. 089901
Author(s):  
D. Main ◽  
V. Sotnikov ◽  
J. Caplinger ◽  
D. V. Rose
Keyword(s):  
Plasma Phys ◽  
Parametric Interaction ◽  
Magnetized Plasma ◽  
Whistler Waves ◽  
Resonance Modes

scholarly journals Theory of the tertiary instability and the Dimits shift within a scalar model

2020 ◽  
Vol 86 (4) ◽  
Author(s):  
Hongxuan Zhu ◽  
Yao Zhou ◽  
I. Y. Dodin
Keyword(s):  
Turbulent Transport ◽  
Plasma Phys ◽  
Magnetized Plasma ◽  
Radial Coordinate ◽  
Flow Shear ◽  
Zonal Flows ◽  
Drift Wave ◽  
Zonal Velocity ◽  
Instability Growth ◽  
Traditional Paradigm

The Dimits shift is the shift between the threshold of the drift-wave primary instability and the actual onset of turbulent transport in a magnetized plasma. It is generally attributed to the suppression of turbulence by zonal flows, but developing a more detailed understanding calls for consideration of specific reduced models. The modified Terry–Horton system has been proposed by St-Onge (J. Plasma Phys., vol. 83, 2017, 905830504) as a minimal model capturing the Dimits shift. Here, we use this model to develop an analytic theory of the Dimits shift and a related theory of the tertiary instability of zonal flows. We show that tertiary modes are localized near extrema of the zonal velocity $U(x)$ , where $x$ is the radial coordinate. By approximating $U(x)$ with a parabola, we derive the tertiary-instability growth rate using two different methods and show that the tertiary instability is essentially the primary drift-wave instability modified by the local $U'' \doteq {\rm d}^2 U/{\rm d} x^2 $ . Then, depending on $U''$ , the tertiary instability can be suppressed or unleashed. The former corresponds to the case when zonal flows are strong enough to suppress turbulence (Dimits regime), while the latter corresponds to the case when zonal flows are unstable and turbulence develops. This understanding is different from the traditional paradigm that turbulence is controlled by the flow shear $| {\rm d} U / {\rm d} x |$ . Our analytic predictions are in agreement with direct numerical simulations of the modified Terry–Horton system.

Interaction of a density modulated electron beam with a magnetized plasma: Emission of whistler waves

1994 ◽  
Vol 1 (7) ◽  
pp. 2163-2171 ◽  
Author(s):  
C. Krafft ◽  
G. Matthieussent ◽  
P. Thévenet ◽  
S. Bresson
Keyword(s):  
Electron Beam ◽  
Magnetized Plasma ◽  
Plasma Emission ◽  
Whistler Waves

Numerical Simulation of Whistler Waves in Magnetized Plasma with Small-Scale Irregularities

2017 ◽  
Vol 43 (12) ◽  
pp. 1179-1188 ◽  
Author(s):  
I. Yu. Zudin ◽  
N. A. Aidakina ◽  
M. E. Gushchin ◽  
T. M. Zaboronkova ◽  
S. V. Korobkov ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Magnetized Plasma ◽  
Small Scale ◽  
Whistler Waves

Radiation of Whistler Waves From a Source With a Rotating Near Magnetic Field in a Magnetized Plasma

2021 ◽  
Vol 64 (2) ◽  
pp. 110-131
Author(s):  
T.M. Zaboronkova ◽  
A.S. Zaitseva ◽  
A.V. Kudrin ◽  
E.Yu. Petrov ◽  
E.V. Bazhilova
Keyword(s):  
Magnetic Field ◽  
Magnetized Plasma ◽  
Whistler Waves

Radiation of whistler waves in a magnetized plasma medium in the presence of density ducts

1994 ◽  
Vol 37 (7) ◽  
pp. 579-592 ◽  
Author(s):  
I. G. Kondrat'ev ◽  
A. V. Kudrin ◽  
T. M. Zaboronkova
Keyword(s):  
Magnetized Plasma ◽  
Plasma Medium ◽  
Whistler Waves

scholarly journals Publisher's Note: Laser propagation in dense magnetized plasma [Phys. Rev. E 94, 053207 (2016)]

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
S. X. Luan ◽  
W. Yu ◽  
F. Y. Li ◽  
Dong Wu ◽  
Z. M. Sheng ◽  
...  
Keyword(s):  
Plasma Phys ◽  
Magnetized Plasma ◽  
Laser Propagation

Modulation of randomly phased whistler wave packets by kinetic Alfvén and ion quasi-modes in a magnetized plasma

1977 ◽  
Vol 18 (1) ◽  
pp. 155-164 ◽  
Author(s):  
P. K. Shukla
Keyword(s):  
Growth Rates ◽  
Linear Growth ◽  
Low Frequency ◽  
Whistler Wave ◽  
Magnetized Plasma ◽  
Wave Turbulence ◽  
Nonlinear Coupling ◽  
Whistler Waves ◽  
Plasma Parameters ◽  
Laboratory Plasmas

We consider the nonlinear coupling of stationary whistler wave turbulence with low-frequency kinetic Alfvén and ion quasi-modes in a magnetized plasma. It is found that such couplings lead to instabilities. The influence of various plasma parameters on the linear growth rates of the instabilities is obtained. Our results may be useful to the understanding of numerous phenomena associated with electron whistler waves in space and laboratory plasmas.

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