72 citations · 938 across the 59 of their papers we have counts for
5 papers · 2 filters
Microtearing modes as the source of magnetic fluctuations in the JET pedestal
D. R. Hatch, M. Kotschenreuther, S. M. Mahajan +15
We report on a detailed study of magnetic fluctuations in the JET pedestal, employing basic theoretical considerations, gyrokinetic simulations, and experimental fluctuation data,…
The intermittent excitation of geodesic acoustic mode by nonlinear Instanton of electron drift wave envelope in L-mode discharge near tokamak edge
Z. Y. Liu, Y. Z. Zhang, S. M. Mahajan +3
There are two distinct phases in the evolution of drift wave envelope in the presence of zonal flow. A long-lived standing wave phase, which we call the Caviton, and a short-lived…
The theoretical study on intermittency and propagation of geodesic acoustic mode in L- mode discharge near tokamak edge
Zhaoyang Liu, Yangzhong Zhang, Swadesh Mitter Mahajan +8
Through a systematically developed theory, we demonstrate that the motion of instanton identified in [Y. Z. Zhang, Z. Y. Liu, T. Xie, S. M. Mahajan, and J. Liu, Physics of Plasmas…
Gyrokinetics investigations of an I-mode pedestal on Alcator C-Mod
Xing Liu, M. Kotschenreuther, D. R. Hatch +3
Naturally stable to ELMs, and with widths larger than EPED predictions, the I-modes are an excellent laboratory for investigating the role of drift micro-instabilities in pedestals…
Constraining Alfvénic Turbulence with Helicity Invariants
Swadesh M. Mahajan, Manasvi Lingam
In this paper, we study the constraints imposed by the invariants (generalized helicities and energy) of extended magnetohydrodynamics on some global characteristics of turbulence.…