Absolute Parametric Excitation by an Imperfect Pump or by Turbulence in an Inhomogeneous Plasma
- 26 January 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 36 (4), 192-196
- https://doi.org/10.1103/physrevlett.36.192
Abstract
Finite-bandwidth effects are investigated by using the random phase approximation. The conditions of validity are checked by solving exactly a particular model. It is found that a finite coherence length for the pump wave can favor the existence of absolute instability.Keywords
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