1972/04/01 by H. Vernon Wong · 1 citation
Physics and Astronomy · #Theoretical and Computational Physics #Dust and Plasma Wave Phenomena #Cold Atom Physics and Bose-Einstein Condensates
paper · doi:10.1063/1.1693958
openalex publication_date 1972/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/05/21
For ω≫ωB = (k02e∅0/me)1/2, the normal modes are essentially oscillations of the background plasma and these can be made unstable due to coupling to the periodic motion of the trapped electrons with bound frequency ωb, where ω = nωb and n is an integer. However, the most unstable waves have frequency ω∼ωB, and in this regime, plasma oscillations with wave number k + k0 and k − k0, where k≪k0, are coupled; instability is associated with coupling due to resonant and nonresonant interaction with the trapped electrons. If the trapped electron distribution function is monotonically increasing (decreasing) in energy, then the lower (upper) frequency side band with wavenumber | k | − k0(| k |+k0) is dominant.