11 citations · 49 across the 16 of their papers we have counts for
16 papers
Ultrasound Evidence for a Low-Temperature Anomaly Inside the Superconducting State of 4Hb-TaS
Yongwei Li, Dmitri V. Efremov, Paul Leask +7
We report low-temperature ultrasound measurements on single crystals of the layered van der Waals superconductor 4Hb-TaS. Specific heat and ac magnetic susceptibility show a sh…
: 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…
soliton_solver: A GPU-based finite-difference PDE solver for topological solitons in two-dimensional non-linear field theories
Paul Leask
This paper introduces soliton_solver, an open-source GPU-accelerated software package for the simulation and real-time visualization of topological solitons in two-dimensional non-…
Interactions of composite magnetic skyrmion-superconducting vortex pairs in ferromagnetic superconductors
Paul Leask, Calum Ross, Egor Babaev
We study composite topological excitations in ferromagnetic superconductors consisting of bound states of magnetic spin textures (skyrmions) and superconducting vortices. Using a G…
Multiple correlation lengths and type-1.5 superconductivity in superconductors due to hidden competition between irreducible representations of nonlocal pairing
Anton Talkachov, Paul Leask, Egor Babaev
A fundamental characteristic of a superconducting state is the coherence length . Multicomponent superconductors, particularly ones breaking multiple symmetries, are characteriz…
Anyon Bound States and Hybrid Superconductivity
Paul Leask
The interactions of anyonic quasi-particles (vortices) in the Chern--Simons extension of the Ginzburg--Landau model is investigated and we show that it manifestly realizes a hybrid…
Ultrasound response to time-reversal symmetry breaking below the superconducting phase transition
Chris Halcrow, Paul Leask, Egor Babaev
Ultrasound attenuation is a powerful probe of symmetry-breaking phenomena in superconductors. In this work, we develop a framework to model the ultrasound response of multi-compone…
Topological transition from a hopfion to a toron via flexoelectric self-polarization in chiral liquid crystals
Paul Leask
The presence of topological defects in apolar chiral liquid crystals cause orientational distortions, leading to non-uniform strain. This non-uniform strain generates an electric p…
Demagnetization in micromagnetics: magnetostatic self-interactions of bulk chiral magnetic skyrmions
Paul Leask, Martin Speight
We develop a theoretical and numerical framework for three-dimensional bulk chiral magnets that includes the full magnetostatic dipole-dipole interaction and its back-reaction on t…
Manipulation and trapping of magnetic skyrmions with domain walls in chiral magnetic thin films
Paul Leask
In this article we use chiral domain walls to manipulate and trap magnetic skyrmion quasi-particles in chiral magnetic materials such as ultrathin Co/Pt films. The magnetic skyrmio…
Compressibility of dense nuclear matter in the -meson variant of the Skyrme model
Miguel Huidobro, Paul Leask, Carlos Naya +1
We show that coupling the -valued Skyrme field to the -meson solves the long-standing issue of (in)compressibility in the solitonic Skyrme model. Even by includi…
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…
Baby skyrmion crystals stabilized by vector mesons
Paul Leask
In this letter we study soliton crystals in the -dimensional analogue model of the -dimensional Adkins--Nappi model of nuclear physics. The baby -Skyrme model stud…
Generalized skyrmion crystals with applications to neutron stars
Paul Leask, Miguel Huidobro, Andrzej Wereszczynski
In this article we study properties of isospin asymmetric nuclear matter in the generalized Skyrme model. This is achieved by canonically quantizing the isospin collective degrees…
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…
Baby Skyrmion crystals
Paul Leask
This paper describes a model for baby Skyrme crystal chunks with arbitrary potential by considering energy contributions from the bulk and surface of a crystal chunk. We focus on t…