3 papers
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…
physics.plasm-ph2025
Global linear drift-wave eigenmode structures on flux surfaces in stellarators: ion temperature gradient mode
Hongxuan Zhu, H. Chen, Z. Lin +1
Turbulent transport greatly impacts the performance of stellarator magnetic confinement devices. While significant progress has been made on the numerical front, theoretical unders…