Parametric instability arising in inhomogeneous plasmas

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Duration: 3 min 30 s
Description: A new, electrostatic, one-dimensional plasma instability is described. It arises when an external electric field is applied to a cold plasma in which both species have initial density perturbations. Both computer simulations and fluid calculations have revealed the instability, which, for sufficiently large perturbations, has a growth rate greater than the two-stream instability.
D. W. A. Whitfield
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