New Paradigm for the Self-Consistent Modeling of Wave-Particle and Wave-Wave Interactions in the Saturation of Electromagnetically Driven Parametric Instabilities

Journal Article · Mon Feb 01 00:00:00 EST 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.932· OSTI ID:304266

Sanbonmatsu, K Y; Vu, H X; DuBois, D F; Bezzerides, B ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We introduce two new and complementary simulation models, which have domains of quantitative agreement, for the self-consistent evolution of the electron distribution, Langmuir decay cascades, and Langmuir collapse. In our reduced-description particle-in-cell (RPIC) simulations, Langmuir decay cascades and cycles of collapse are seen for the first time in particle simulation. The velocity distribution in our Zakharov model is evolved using quasilinear diffusion plus Cerenkov emission loss and agrees in expected domains with the RPIC results. These techniques promise to solve long known problems in the standard simulations of laser-plasma instabilities. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 304266
• Journal Information: Physical Review Letters, Vol. 82, Issue 5; Other Information: PBD: Feb 1999
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
PLASMA SIMULATION
PARAMETRIC INSTABILITIES
PLASMA INSTABILITY
LASER RADIATION
BEAM-PLASMA SYSTEMS
TURBULENCE