From the 1 of 12 linked papers with an AI index.
12 papers
The Second Quadratic Invariant of Astrophysical Gyrokinetics
Benjamin D. G. Chandran, Alfred Mallet, Romain Meyrand
The paper identifies a previously unknown quadratic invariant, called gyrokinetic helicity, in astrophysical gyrokinetics and derives its forms across several reduced plasma models…
A Transport Theory of Turbulent Coronal Heating in General Geometry
Jonathan Squire, Benjamin D. G. Chandran, Toby Adkins +3
Magnetic geometry shapes how turbulence transports and dissipates energy in strongly magnetized plasmas. The solar corona, a maze of open and closed flux tubes with sharp transvers…
Asymptotic scaling theory of electrostatic turbulent transport in magnetised fusion plasmas
T. Adkins, I. G. Abel, M. Barnes +8
Turbulent transport remains one of the principal obstacles to achieving efficient magnetic confinement in fusion devices. Two of the dominant drivers of the turbulence are microsca…
Turbulent heating in collisionless low-beta plasmas: imbalance, Landau damping, and electron-ion energy partition
T. Adkins, R. Meyrand, J. Squire
An understanding of how turbulent energy is partitioned between ions and electrons in weakly collisional plasmas is crucial for modelling many astrophysical systems. Using theory a…
A Unified Phenomenology of Ion Heating in Low- Plasmas: Test-Particle Simulations
Zade Johnston, Jonathan Squire, Romain Meyrand
We argue that stochastic and resonant ion heating, often viewed as distinct processes in low- collisionless plasmas, are the far limits of a continuum controlled by nonlinear b…
Formation of Magnetic Switchbacks via expanding Alfvén Waves
Trevor A. Bowen, Alfred Mallet, Corina I. Dunn +8
Context. Large-amplitude inversions of the solar wind's interplanetary magnetic field have long been documented; however, observations from the Parker Solar Probe (PSP) mission hav…