Interaction of charged particles with localized electrostatic waves in a magnetized plasma

Kominis, Y; Ram, AK; Hizanidis, K

dc.contributor.author	Kominis, Y	en
dc.contributor.author	Ram, AK	en
dc.contributor.author	Hizanidis, K	en
dc.date.accessioned	2014-03-01T02:09:21Z
dc.date.available	2014-03-01T02:09:21Z
dc.date.issued	2012	en
dc.identifier.issn	15393755	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29828
dc.subject.other	Astrophysical plasma	en
dc.subject.other	Closed-form expression	en
dc.subject.other	Electrostatic waves	en
dc.subject.other	Ensemble-averaged	en
dc.subject.other	Fusion plasmas	en
dc.subject.other	Gaussian Wave Packets	en
dc.subject.other	Initial conditions	en
dc.subject.other	Lie transforms	en
dc.subject.other	Localized wave packets	en
dc.subject.other	Magnetized plasmas	en
dc.subject.other	Perturbation theory	en
dc.subject.other	Plane wave	en
dc.subject.other	Ponderomotive effects	en
dc.subject.other	Spatial extent	en
dc.subject.other	Charged particles	en
dc.subject.other	Magnetic fields	en
dc.subject.other	Microwave devices	en
dc.subject.other	Particle interactions	en
dc.subject.other	Wave packets	en
dc.subject.other	Electrostatics	en
dc.title	Interaction of charged particles with localized electrostatic waves in a magnetized plasma	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevE.85.016404	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevE.85.016404	en
heal.identifier.secondary	016404	en
heal.publicationDate	2012	en
heal.abstract	Charged particle interaction with localized wave packets in a magnetic field is formulated using the canonical perturbation theory and the Lie transform theory. An electrostatic wave packet characterized by a wide range of group and phase velocities as well as spatial extent along and across the magnetic field is considered. The averaged changes in the momentum along the magnetic field, the angular momentum, and the guiding center position for an ensemble of particles due to their interaction with the wave packet are determined analytically. Both resonant and ponderomotive effects are included. For the case of a Gaussian wave packet, closed-form expressions include the dependency of the ensemble averaged particle momenta and guiding center position variations on wave packet parameters and particle initial conditions. These expressions elucidate the physics of the interaction which is markedly different from the well known case of particle interaction with plane waves and are relevant to a variety of applications ranging from space and astrophysical plasmas to laboratory and fusion plasmas, as well as accelerators and microwave devices. © 2012 American Physical Society.	en
heal.journalName	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics	en
dc.identifier.doi	10.1103/PhysRevE.85.016404	en
dc.identifier.volume	85	en
dc.identifier.issue	1	en