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physics.space-ph2025
The Ginzburg-Landau Model of Magnetospheric Chorus: Instabilities and Mode Condensation
Brandon Bonham, Amitava Bhattacharjee
The analogy between free-electron lasers (FELs) - laboratory devices which generate intense coherent light with tunable frequencies - and whistler wave-particle interactions in the…
physics.space-ph2025
Whistler Chorus Amplification in the Magnetosphere: The Nonlinear Free-Electron Laser Model and the Ginzburg-Landau Equation
Brandon Bonham, Amitava Bhattacharjee
We present a novel nonlinear model for whistler-mode chorus amplification based on the free-electron laser (FEL) mechanism. First, we derive the nonlinear collective variable equat…