The survival threshold for plasma oscillations
The survival threshold for plasma oscillations
-
Toan Nguyen, Pennsylvania State University
In-Person Talk听
The classical relativistic Vlasov-Maxwell system is used to model the dynamics of charged particles, and plasma oscillations or听Langmuir鈥檚 waves are shown to exist and obey a Klein-Gordon鈥檚 type dispersion relation. Amusingly, a threshold of the wave number is provided for the survival of pure electrical oscillations at which waves are damped by the classical Landau damping (the faster electrons decay, the weaker Landau damping is),听while magnetic fields disperse like a听Klein-Gordon wave for the full range of wave numbers.