Nonlinear interaction of drift waves with driven plasma currents
Author(s) -
C. Brandt,
O. Grulke,
T. Klinger
Publication year - 2010
Publication title -
physics of plasmas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 160
eISSN - 1089-7674
pISSN - 1070-664X
DOI - 10.1063/1.3328820
Subject(s) - physics , amplitude , plasma , synchronization (alternating current) , nonlinear system , range (aeronautics) , plasma oscillation , phase (matter) , quantum electrodynamics , computational physics , optics , quantum mechanics , topology (electrical circuits) , materials science , mathematics , combinatorics , composite material
In a cylindrical magnetized plasma, coherent drift wave modes are synchronized by a mode selective drive of plasma currents. Nonlinear effects of the synchronization are investigated in detail. Frequency pulling is observed over a certain frequency range. The dependence of the width of this synchronization range on the amplitude of the driven plasma currents forms Arnold tongues. The transition between complete and incomplete synchronization is indicated by the onset of periodic pulling and phase slippage. Synchronization is observed for driven current amplitudes, which are some percent of the typical value of parallel currents generated by drift waves.
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