NDLI: Ponderomotive forces in a time-dependent plasma

Content Provider	IEEE Xplore Digital Library
Author	Vladimirov, S.V.
Copyright Year	1997
Description	Author affiliation: Sch. of Phys., Sydney Univ., NSW, Australia (Vladimirov, S.V.)
Abstract	Summary form only given. Forces acting on a plasma due to the presence of electric and magnetic fields are closely connected with energy and momentum densities of the fields. Although the corresponding expressions in the stationary case are well known, the problem for a time-dependent plasma is less trivial. The main point is that in a (weakly) time-dependent transparent medium an imaginary part of the dielectric function appears which depends on the slow time scale. The high-frequency electrostatic field in a nonstationary plasma creates three types of forces: the ponderomotive force, dissipative force (which necessarily includes terms because of the nonstationarity), and finally, the force due to change of momentum of the field. We find that for normal plasma modes, the general macroscopic consideration is sufficient to establish that only the pondermotive forces acts on the medium regardless of whether the system is open or closed.
File Size	89148
File Format	PDF
ISBN	0780339908
ISSN	07309244
DOI	10.1109/PLASMA.1997.604881
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-05-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dusty plasma Plasma density Plasma waves Physics Surface waves Astrophysics Australia Frequency Magnetic fields Dielectrics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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