For more information about this meeting, contact Sergei Tabachnikov.
|Title:||Averaging, passages through resonances, and captures into resonance in dynamics of charged particles|
|Seminar:||Department of Mathematics Colloquium|
|Speaker:||Anatoly Nieshtadt, Loughborough University, UK|
|A study of motion of charged particles in the electromagnetic field of a wave propagating in plasma in the presence of a constant background magnetic field is a classical problem in plasma physics. Under different relations between parameters of this problem completely different dynamical phenomena take place. The averaging method is a natural tool for study of this problem. In this talk I am planning to describe phenomena of capture into resonance and scattering on resonance that occur in the case of slow high frequency waves and a weak background magnetic field. In this case particle motion is described by a slow-fast Hamiltonian system. Capture into resonance may lead to unlimited particle acceleration along the front of the wave (so called surfatron acceleration).|
Room Reservation Information
|Date:||09 / 23 / 2010|
|Time:||04:00pm - 05:00pm|