Physical Review Letters
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How Zonal Fields Suppress Reversed Shear Alfvén Eigenmode in Tokamak Plasmas
Author(s): Ruirui Ma, Pengfei Liu, Liu Chen, Fulvio Zonca, and Zhiyong Qiu
Understanding nonlinear saturation of reversed-shear Alfvén eigenmodes (RSAEs) in tokamaks is crucial for high-performance burning plasmas. Employing both nonlinear gyrokinetic simulations and theoretical analyses, we have discovered the novel result that, with energetic particle dynamics kept linea… [Phys. Rev. Lett. 137, 045101] Published Tue Jul 21, 2026