Geodesic acoustic modes (GAMs) are ubiquitous oscillatory flow phenomena observed in
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …

Recent experimental and simulation work has substantially advanced the understanding of
L-mode plasma edge turbulence and plasma flows and their mutual interaction across the L …

A fast edge turbulence suppression event has been simulated in the electrostatic version of
the gyrokinetic particle-in-cell code XGC1 in a realistic diverted tokamak edge geometry …

Experimental investigations carried out in the ASDEX Upgrade tokamak under various
conditions demonstrate that the ion heat flux at the plasma edge plays a key role in the L–H …

An overview of the H-mode threshold power in ASDEX Upgrade which addresses the impact
of the tungsten versus graphite wall, the dependences upon plasma current and density, as …

Infinite toroidal mode number (n=∞) ballooning mode analysis of negative triangularity
discharges on DIII–D shows that the access to 2 nd stability becomes strongly restricted …

In this paper, recent progress on experimental analysis and theoretical models for non-local
transport (non-Fickian fluxes in real space) is reviewed. The non-locality in the heat and …

We investigate the dynamics of the low (L)→ high (H) transition using a time-dependent, one
dimensional (in radius) model which self-consistently describes the time evolution of zonal …

A tokamak relies on the axisymmetric magnetic fields to confine fusion plasmas and aims to
deliver sustainable and clean energy. However, misalignments arise inevitably in the …

The dynamic features of the low-intermediate–high-(LIH) confinement transitions on HL-2A
tokamak are presented. Here we report the discovery of two types of limit cycles (dubbed …