17 citations · 36 across the 3 of their papers we have counts for
12 papers
Plasmoid solutions of the Hahm--Kulsrud--Taylor equilibrium model
R. L. Dewar, A. Bhattacharjee, R. M. Kulsrud +1
The Hahm--Kulsrud (HK) [T. S. Hahm and R. M. Kulsrud, Phys. Fluids {\bf 28}, 2412 (1985)] solutions for a magnetically sheared plasma slab driven by a resonant periodic boundary pe…
Generalised action-angle coordinates defined on island chains
Robert L. Dewar, Stuart R. Hudson, Ashley M. Gibson
Straight-field-line coordinates are very useful for representing magnetic fields in toroidally confined plasmas, but fundamental problems arise regarding their definition in 3-D ge…
Nonaxisymmetric, multi-region relaxed magnetohydrodynamic equilibrium solutions
S. R. Hudson, R. L. Dewar, M. J. Hole +1
We describe a magnetohydrodynamic (MHD) constrained energy functional for equilibrium calculations that combines the topological constraints of ideal MHD with elements of Taylor re…
Dressed test particles, oscillation centres and pseudo-orbits
R. L. Dewar, D. Leykam
A general semi-analytical method for accurate and efficient numerical calculation of the dielectrically screened ("dressed") potential around a non-relativistic test particle movin…
Action-gradient-minimizing pseudo-orbits and almost-invariant tori
R. L. Dewar, S. R. Hudson, A. M. Gibson
Transport in near-integrable, but partially chaotic, degree-of-freedom Hamiltonian systems is blocked by invariant tori and is reduced at \emph{almost}-invariant tori, both…
Hamilton--Jacobi theory for continuation of magnetic field across a toroidal surface supporting a plasma pressure discontinuity
M. McGann, S. R. Hudson, R. L. Dewar +1
The vanishing of the divergence of the total stress tensor (magnetic plus kinetic) in a neighborhood of an equilibrium plasma containing a toroidal surface of discontinuity gives b…