Energy accumulation mechanism in pulsar magnetospheric plasma eigen-waves and formation of Giant Radio Pulses

In the present work we consider energy accumulation mechanism in relativistic electron-positron plasma in the magnetosphere of pulsars. In the light cylinder vicinity the waves propagating almost across the magnetic field lines are generated. Due to their propagation characteristics, these waves spend significantly long time in the resonance region and as a result accumulate the energy of resonant plasma particles. The accumulated energy is transmitted in the parallel direction of the magnetic field lines as soon as the non-linear plasma processes start to operate. As a result the direction of propagation of waves changes and the waves with accumulated energy can exit the pulsar magnetosphere. It is suggested that when the propagation angles of the mentioned waves becomes small with respect to the magnetic field lines, the waves can be observed as Giant Radio Pulses.