Adiabatic invariance for eigenmodes and continuum modes in nonuniform plasmas

Hirota, Makoto; Tokuda, Shinji

Adiabatic invariance of wave action is investigated for generaleigenmodes and continuum modes by exploiting the variational principlefor linearized dynamical systems. Given a sufficiently slow evolution of the background fields, thewave action (or the action variable) attributed to each mode isconserved as long as the corresponding discrete or continuous spectrumis isolated from other spectra and zero frequency. The resonantcoupling allows exchange of wave action among these modes.

Language	:	English
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Meeting title	:	American Physical Society 51st Annual Meeting of the Division of Plasma Physics
Held date	:	2009/11
Location (city)	:	Atlanta
Location (country)	:	U.S.A.
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Keywords	:	no keyword
Research Facility	:	JT-60(臨界プラズマ試験装置)
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Registration No. : BB20091244
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