Modulational instability of nonlinearly interacting incoherent sea states |
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| Authors: | P. K. Shukla M. Marklund L. Stenflo |
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| Affiliation: | 1.Institut für Theoretische Physik IV and Centre for Plasma Science and Astrophysics,Ruhr-Universitat Bochum,Bochum,Germany;2.Centre for Nonlinear Physics, Department of Physics,Ume? University,Ume?,Sweden;3.Centre for Fundamental Physics,Rutherford Appleton Laboratory,Chilton, Didcot,UK |
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| Abstract: | The modulational instability of nonlinearly interacting spatially incoherent Stokes waves is analyzed. Starting from a pair of nonlinear Schrödinger equations, we derive a coupled set of wave-kinetic equations by using the Wigner transform technique. It is shown that the partial coherence of the interacting waves induces novel effects on the dynamics of crossing sea states. |
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