2 papers
hep-th2015
Dynamics of vortices with magnetic impurities
Alexander Cockburn, Steffen Krusch, Abera A. Muhamed
We investigate the dynamics of BPS vortices in the presence of magnetic impurities taking the form of axially-symmetric localised lumps and delta-functions. We present numerical re…
hep-th2014
Moduli Spaces of Lumps on Real Projective Space
Steffen Krusch, Abera A. Muhamed
Harmonic maps that minimise the Dirichlet energy in their homotopy classes are known as lumps. Lump solutions on real projective space are explicitly given by rational maps subject…