13 papers
Holographic Soliton Crystals for Dense Nuclear Matter and Neutron Stars
Lorenzo Bartolini, Sven Bjarke Gudnason, Jonas Mager +1
We construct a nuclear-matter equation of state (EOS) from holographic QCD in the Witten-Sakai-Sugimoto (WSS) model, going beyond the homogeneous ansatz by building dense baryonic…
Magnetic D-brane solitons: skyrmion strings ending on a Néel wall in chiral magnets
Sven Bjarke Gudnason, Muneto Nitta
Magnetic skyrmions extended to three dimensions form string-like objects whose fundamental role remains largely unexplored. We show that skyrmion strings can terminate on a Néel-t…
Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization
Sven Bjarke Gudnason, Yuki Amari, Muneto Nitta
Absorption of an isolated bulk magnetic skyrmion into an empty domain wall in a chiral ferromagnetic system is studied using the Landau-Lifshitz-Gilbert equation with and without t…
Phase diagram of magnetic Skyrmions on three-dimensional lattices and the toroidal antiSkyrmion
Niccolò Francini, Stefano Bolognesi, Sven Bjarke Gudnason +1
Magnetic Skyrmions are planar solitons stabilized by the Dzyaloshinskii-Moriya interaction (DMI) and realized in chiral magnets. We study their natural three-dimensional generaliza…
: A CUDA-OpenGL framework for interactive simulation and visualization of nuclei as Skyrmions
Sven Bjarke Gudnason, Paul Leask
We introduce , a 3-dimensional Skyrme model computation and visualization software, that is written in for rapid computation and visualizatio…
Cartan connections for an infinite family of integrable vortices
Sven Bjarke Gudnason, Calum Ross
An infinite family of integrable vortex equations is studied and related to the Cartan geometry of the underlying Riemann surfaces. This Cartan picture gives an interpretation of t…