The effects of incoherence on the three-wave coupling process backward stimulated Raman scattering (SRS) in inhomogeneous plasmas are investigated theoretically and numerically via a model. impact plasma wave nonlinearity is taken into account, namely, effect trapped electrons nonlinear frequency shift electron wave. Incoherence introduced seed wave, laser pump bandwidth associated with Lorentz...

Large ensembles of heterogeneous oscillators often exhibit collective synchronization as a result of mutual interactions. If the oscillators have distributed natural frequencies and common shear (or nonisochronicity), the transition from incoherence to collective synchronization is known to occur at large enough values of the coupling strength. However, here we demonstrate that shear diversity ...

Recently, it has been shown that incoherence is an unrealistic assumption for compressed sensing when applied to infinite-dimensional inverse problems. Instead, the key property that permits efficient recovery in such problems is so-called asymptotic incoherence. The purpose of this paper is to study this new concept, and its implications towards the design of optimal sampling strategies. In pa...