Nonlinear evolution of the modulational instability of whistler waves

Journal Article · Mon Feb 19 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.890· OSTI ID:6992376

Karpman, V I; Hansen, F R; Huld, T; Lynov, J P; Pecseli, H L; Rasmussen, J J ^[1]

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1. Association EURATOM-Riso National Laboratory, Physics Department, Riso, Post Office Box 49, DK-4000 Roskilde, Denmark (DK)

The nonlinear evolution of the modulational instability of whistler waves coupled to fast magnetosonic waves is investigated in two spatial dimensions by numerical simulations. The long time evolution of the modulational instability shows a quasirecurrent behavior with a slow spreading of the energy, originally confined to the lowest wave numbers, to larger and larger wave numbers resulting in an apparently chaotic or random wave field.

• OSTI ID: 6992376
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:8; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
AMPLITUDES
ELECTROMAGNETIC RADIATION
FAST MAGNETOACOUSTIC WAVES
HYDROMAGNETIC WAVES
INSTABILITY
LOW-BETA PLASMA
MAGNETOACOUSTIC WAVES
NOISE
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RADIATIONS
RADIO NOISE
RADIOWAVE RADIATION
RANDOMNESS
SIMULATION
WHISTLERS