Nonlinear wave–wave coupling constitutes an important route for the turbulence spectrum
evolution in both space and laboratory plasmas. For example, in a reactor relevant fusion …

Geodesic acoustic modes (GAM) are oscillating zonal structures unique to toroidal plasmas,
and have been extensively studied in the past decades due to their potential capabilities of …

The nonlinear dynamics of beta-induced Alfvén eigenmodes (BAEs) driven by energetic
particles (EPs) in the presence of ion-temperature-gradient turbulence is investigated, by …

Generation of zonal flow (ZF) by energetic particle (EP) driven toroidal Alfvén eigenmode
(TAE) is investigated using nonlinear gyrokinetic theory. It is found that nonlinear resonant …

Nonlinear saturation of a toroidal Alfvén eigenmode via ion induced scattering is
investigated in the short-wavelength gyrokinetic regime. It is found that the nonlinear …

Nonlinear simulations of Alfvén modes (AMs) driven by energetic particles (EPs) in the
presence of turbulence are performed with the gyrokinetic particle-in-cell code ORB5. The …

Energetic particle (EP) dynamics and excitation of EP driven instabilities is an important
topic of study for the physics of fusion reactors. In this paper we consider EPs injected in the …

Multiple toroidal Alfvén eigenmodes (TAEs) driven unstable by energetic electrons and a
geodesic acoustic mode (GAM) have been successively observed in the Experimental …

The set of equations describing nonlinear evolution of a single toroidal Alfvén eigenmode
are derived, including both zero frequency zonal structure (ZFZS) generation and wave …

In a tokamak fusion reactor operated at steady state, the equilibrium magnetic field is likely
to have reversed shear in the core region, as the noninductive bootstrap current profile …