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hep-th2026

Non-topological solitons in biadjoint scalar field theory

Kymani Armstrong-Williams, Chris D. White

Biadjoint scalar theory has been widely studied, due to its being closely related to the double copy correspondence linking gauge, gravity and related theories. In this paper, we c…

hep-th2026

Classical strings and the double copy

Riccardo Morieri, Igor Pesando, Michael L. Reichenberg Ashby +1

The double copy is by now a well-established relationship between scattering amplitudes and classical solutions in gauge and gravity (field) theories, and is itself inspired by amp…

hep-th2025

The double copy as a doppelgänger

Nathan Moynihan, Michael L. Reichenberg Ashby, Chris D. White

The double copy relates scattering amplitudes and classical solutions in non-abelian gauge theories and gravity. As such, it is usually expressed in the conventional second-order f…

hep-th2025

Topological modes, non-locality and the double copy

William T. Emond, Laura Engelbrecht, Nathan Moynihan +1

The double copy connects scattering amplitudes and other objects in gauge and gravity theories. Open conceptual issues include whether non-local information in gravity theories can…

hep-th2025

Time-dependent solutions of biadjoint scalar field theories

Kymani Armstrong-Williams, Chris D. White

Biadjoint scalar field theories appear in the study of scattering amplitudes and classical solutions in gauge, gravity and related theories. In this paper, we present new exact sol…

hep-th2024

Deriving Weyl double copies with sources

Kymani Armstrong-Williams, Nathan Moynihan, Chris D. White

The Weyl double copy is a relationship between classical solutions in gauge and gravity theories, and has previously been applied to vacuum solutions in both General Relativity and…

hep-th2024

What can abelian gauge theories teach us about kinematic algebras?

Kymani Armstrong-Williams, Silvia Nagy, Chris D. White +1

The phenomenon of BCJ duality implies that gauge theories possess an abstract kinematic algebra, mirroring the non-abelian Lie algebra underlying the colour information. Although t…