Question

are acoustic waves and electron plasma waves same?​

Answer 1

Answer:

Electron acoustic waves (EAWs) are the nonlinear low frequency branch of electrostatic plasma waves. The EAW typically has a phase velocity vph∼1.4ˉv (for small kλD), quite low compared to typical plasma waves, and its frequency has a strong temperature dependence, fEAW∝T1/2.

Answer 2

Electron acoustic waves (EAWs) are the nonlinear low frequency branch of electrostatic plasma waves. The EAW typically has a phase velocity vph∼1.4ˉv (for small kλD), quite low compared to typical plasma waves, and its frequency has a strong temperature dependence, fEAW∝T1/2.