Abstract
Three-wave nonlinear coupling among spatial Fourier modes of density and magnetic fluctuations is directly measured in a magnetically confined toroidal plasma. Density fluctuations are observed to gain (lose) energy from (to) either equilibrium or fluctuating fields depending on the mode number. Experiments indicate that nonlinear interactions alter the phase relation between density and magnetic fluctuations, leading to strong particle transport.
Original language | English |
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Article number | 175001 |
Journal | Physical Review Letters |
Volume | 108 |
Issue number | 17 |
DOIs | |
State | Published - Apr 23 2012 |
Externally published | Yes |