109 citations · 768 across the 27 of their papers we have counts for
13 papers · 1 filter
Shape modes of vortices
Nora Gavrea, Derek Harland, Martin Speight
In this paper we investigate the existence of internal modes of vortices in the gauged sigma model. We develop a clean geometric formalism that highlights the symme…
Short range intervortex forces
Martin Speight, Thomas Winyard
An explicit formula for the interaction energy of vortices in the abelian Higgs (or Ginzburg-Landau) model is derived, valid in the regime where all vortices are close to one a…
Skyrmion crystals stabilized by -mesons
Derek Harland, Paul Leask, Martin Speight
We investigate the ground state crystalline structure of nuclear matter in the -meson variant of the Skyrme model. After minimizing energy with respect to variations of both the…
Skyrme crystals with massive pions
Derek Harland, Paul Leask, Martin Speight
The crystalline structure of nuclear matter is investigated in the standard Skyrme model with massive pions. A semi-analytic method is developed to determine local minima of the st…
A point particle model of lightly bound skyrmions
Mike Gillard, Derek Harland, Elliot Kirk +2
A simple model of the dynamics of lightly bound skyrmions is developed in which skyrmions are replaced by point particles, each carrying an internal orientation. The model accounts…
Skyrmions with low binding energies
Mike Gillard, Derek Harland, Martin Speight
Nuclear binding energies are investigated in two variants of the Skyrme model: the first replaces the usual Skyrme term with a term that is sixth order in derivatives, and the seco…