Normal-mode-based analysis of electron plasma waves with second-order Hermitian formalism

Dataset · Thu Oct 25 04:00:00 EDT 2018

DOI:https://doi.org/10.7910/DVN/02RPRS· OSTI ID:1880234

Ramos, J. J. ^[1]; White, R. L.

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1. OSTI

The classic problem of the dynamic evolution of Langmuir electron waves in a collisionless plasma and their Landau damping is cast as a second-order, self-adjoint problem with a continuum spectrum of real and positive squared frequencies. The corresponding complete basis of singular normal modes is obtained, along with their orthogonality relation. This yields easily the general expression of the time-reversal-invariant solution for any initial-value problem. An example is given for a specific initial condition that illustrates the Landau damping of the macroscopic moments of the perturbation.

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
• Sponsoring Organization: USDOE Office of Science (SC), Fusion Energy Sciences (FES)
• DOE Contract Number: FG02-91ER54109
• OSTI ID: 1880234
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY