Spin induced nonlinearities in the electron MHD regime

Details Spin induced nonlinearities in the electron MHD regime Spin induced nonlinearities in the electron MHD regime

2009-11-04

arxiv.org/abs/0911.0803v1

Physics

Plasma Physics

5 pages

Scientific paper

We consider the influence of the electron spin on the nonlinear propagation of whistler waves. For this purpose a recently developed electron two-fluid model, where the spin up- and down populations are treated as different fluids, is adapted to the electron MHD regime. We then derive a nonlinear Schrodinger equation for whistler waves, and compare the coefficients of nonlinearity with and without spin effects. The relative importance of spin effects depend on the plasma density and temperature as well as the external magnetic field strength and the wave frequency. The significance of our results to various plasmas are discussed.

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