995 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck Institute for Radio AstronomyDE100 papers
- Centre National de la Recherche ScientifiqueFR91 papers
- Max Planck Institute for AstronomyDE76 papers
- University of EdinburghGB75 papers
- University of CambridgeGB74 papers
- University of LeedsGB69 papers
- Liverpool John Moores UniversityGB65 papers
- University of HertfordshireGB65 papers
- Imperial College LondonGB60 papers
- Rutherford Appleton LaboratoryGB52 papers
- University of OxfordGB50 papers
- Cardiff UniversityGB49 papers
68 papers · 1 filter
Spectral wall in collisions of excited Abelian Higgs vortices
A. Alonso-Izquierdo, J. Mateos Guillarte, M. Rees +1
We find a spectral wall in collisions of two vortices in the Abelian Higgs model at the critical coupling. It occurs if the out-of-phase mode of initially separated vortices is exc…
A model for gauged skyrmions with low binding energies
Josh Cork, Derek Harland, Thomas Winyard
We consider gauged skyrmions with boundary conditions which break the gauge from to in models derived from Yang-Mills theory. After deriving genera…
Geometric aspects of the ODE/IM correspondence
Patrick Dorey, Clare Dunning, Stefano Negro +1
This review describes a link between Lax operators, embedded surfaces and Thermodynamic Bethe Ansatz equations for integrable quantum field theories. This surprising connection bet…
Vortices and magnetic impurities
Jennifer Ashcroft, Steffen Krusch
Ginzburg-Landau vortices in superconductors attract or repel depending on whether the value of the coupling constant is less than 1 or larger than 1. At critical coupling it was pr…
The BPS sectors of the Skyrme model and their non-BPS extensions
C. Adam, D. Foster, S. Krusch +1
Two recently found coupled BPS submodels of the Skyrme model are further analyzed. Firstly, we provide a geometrical formulation of the submodels in terms of the eigenvalues of the…
Head butting sheep: Kink Collisions in the Presence of False Vacua
Jennifer Ashcroft, Minoru Eto, Mareike Haberichter +2
We investigate numerically kink collisions in a dimensional scalar field theory with multiple vacua. The domain wall model we are interested in involves two scalar fields and…
The volume of a soliton
C. Adam, M. Haberichter, A. Wereszczynski
There exists, in general, no unique definition of the size (volume, area, etc., depending on dimension) of a soliton. Here we demonstrate that the geometric volume (area etc.) of a…
Skyrme models and nuclear matter equation of state
Christoph Adam, Mareike Haberichter, Andrzej Wereszczynski
We investigate the role of pressure in a class of generalised Skyrme models. We introduce pressure as the trace of the spatial part of the energy-momentum tensor and show that it o…
Tunneling decay of false domain walls: the silence of the lambs
Mareike Haberichter, Richard MacKenzie, M. B. Paranjape +1
We study the decay of "false" domain walls, which are metastable states of the quantum theory where the true vacuum is trapped inside the wall, with the false vacuum outside. We co…
Baby Skyrme models without a potential term
Jennifer Ashcroft, Mareike Haberichter, Steffen Krusch
We develop a one-parameter family of static baby Skyrme models that do not require a potential term to admit topological solitons. This is a novel property as the standard baby Sky…
Scattering of Skyrmions
David Foster, Steffen Krusch
In this paper, we present a detailed study of Skyrmion-Skyrmion scattering for two Skyrmions in the attractive channel where we observe two different scattering regimes. For…
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…
Classically isospinning Skyrmion solutions
Richard A. Battye, Mareike Haberichter, Steffen Krusch
We investigate how isospin affects the geometrical shape and energy of classical soliton solutions of topological charges in the Skyrme model. The novel approach in our w…
Isospinning baby Skyrmion solutions
Richard A. Battye, Mareike Haberichter
We perform full two-dimensional (2D) numerical relaxations of isospinning soliton solutions in the baby Skyrme model in which the global symmetry is broken by the 2D analogu…
Negative Baryon density and the Folding structure of the B=3 Skyrmion
David Foster, Steffen Krusch
The Skyrme model is a non-linear field theory whose solitonic solutions, once quantised, describe atomic nuclei. The classical static soliton solutions, so-called Skyrmions, have i…
Quantum lump dynamics on the two-sphere
S. Krusch, J. M. Speight
It is well known that the low-energy classical dynamics of solitons of Bogomol'nyi type is well approximated by geodesic motion in M_n, the moduli space of static n-solitons. There…
Dynamics of multi-kinks in the presence of wells and barriers
Stephen W. Goatham, Lucy E. Mannering, Rebecca Hann +1
Sine-Gordon kinks are a much studied integrable system that possesses multi-soliton solutions. Recent studies on sine-Gordon kinks with space-dependent square-well-type potentials…
Fermions, Skyrmions and the 3-Sphere
Stephen W. Goatham, Steffen Krusch
This paper investigates a background charge one Skyrme field chirally coupled to light fermions on the 3-sphere. The Dirac equation for the system commutes with a generalised angul…
PT symmetry breaking and exceptional points for a class of inhomogeneous complex potentials
Patrick Dorey, Clare Dunning, Anna Lishman +1
We study a three-parameter family of PT-symmetric Hamiltonians, related via the ODE/IM correspondence to the Perk-Schultz models. We show that real eigenvalues merge and become com…
Exact moduli space metrics for hyperbolic vortices
Steffen Krusch, Martin Speight
Exact metrics on some totally geodesic submanifolds of the moduli space of static hyperbolic N-vortices are derived. These submanifolds, denoted Σ_{n,m}, are spaces of C_n-invarian…
From PT-symmetric quantum mechanics to conformal field theory
Patrick Dorey, Clare Dunning, Roberto Tateo
One of the simplest examples of a PT-symmetric quantum system is the scaling Yang-Lee model, a quantum field theory with cubic interaction and purely imaginary coupling. We give a…
On the ODE/IM correspondence for minimal models
Patrick Dorey, Clare Dunning, Ferdinando Gliozzi +1
Within the framework of the ODE/IM correspondence, we show that the minimal conformal field theories with c<1 emerge naturally from the monodromy properties of certain families of…
The ODE/IM Correspondence
Patrick Dorey, Clare Dunning, Roberto Tateo
This article reviews a recently-discovered link between integrable quantum field theories and certain ordinary differential equations in the complex domain. Along the way, aspects…
Pseudo-differential equations, and the Bethe Ansatz for the classical Lie algebras
Patrick Dorey, Clare Dunning, Davide Masoero +2
The correspondence between ordinary differential equations and Bethe ansatz equations for integrable lattice models in their continuum limits is generalised to vertex models relate…