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Extreme Faraday effect in plasma under relativistic conditions
Abstract:
The extreme Faraday effect in plasma has been identified as a mechanism capable of generating a pair of circularly polarized pulses with opposite chirality. However, previous studies on this phenomenon have been confined to non-relativistic intensity regimes. In this study, we explore the relativistic extreme Faraday effect in plasma by incorporating relativistic self-phase modulation and the Lorentz factor. A theoretical model applicable to the relativistic regime has been developed and validated through a series of particle-in-cell simulations. The results reveal that, under relativistic conditions, the difference in group velocities between left-hand circularly polarized light and right-hand circularly polarized light is significantly reduced compared to the non-relativistic case. This work offers a comprehensive understanding of the interplay between relativistic effects and the extreme Faraday effect in strongly magnetized plasma.
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