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

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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 http://hdl.handle.net/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


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