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Order and chaos in ETG-driven drift–dissipative waves with sheared flows

  • ARSHAD M. MIRZA (a1), TARIQ RAFIQ (a1), ANISA QAMAR (a1), G. MURTAZA (a1), P. K. SHUKLA (a2) and R. T. FARIA (a2) (a3)...

Abstract

We derive a system of nonlinear equations that govern the dynamics of low-frequency short-wavelength electromagnetic waves in the presence of equilibrium density, temperature, magnetic field and velocity gradients. In the linear limit, a local dispersion relation is obtained and analyzed. New ηe-driven electromagnetic drift modes and instabilities are shown to exist. In the nonlinear case, the temporal behaviour of a nonlinear dissipative system can be written in the form of Lorenz- and Stenflo-type equations that admit chaotic trajectories. On the other hand, the stationary solutions of the nonlinear system can be represented in the form of dipolar and vortex-chain solutions.

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Order and chaos in ETG-driven drift–dissipative waves with sheared flows

  • ARSHAD M. MIRZA (a1), TARIQ RAFIQ (a1), ANISA QAMAR (a1), G. MURTAZA (a1), P. K. SHUKLA (a2) and R. T. FARIA (a2) (a3)...

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