134 citations · 1.3k across the 46 of their papers we have counts for
14 papers · 1 filter
Understanding the Quantized Angular Momentum of Rotating Q-balls
Benjamin DeVries, Fabrizio Vassallo, Christopher B. Verhaaren
Non-topological solitons, such as Q-balls, may contribute to the cosmological dark matter. The formation and evolution of Q-balls in the early universe requires an understanding of…
Geometrizing the Anomaly
Joshua Newey, John Terning, Christopher B. Verhaaren
Recently a manifestly gauge invariant formalism for calculating amplitudes in quantum electrodynamics was outlined in which the field strength, rather than the gauge potential, is…
Schwinger vs Coleman: Magnetic Charge Renormalization
Joshua Newey, John Terning, Christopher B. Verhaaren
The kinetic mixing of two U(1) gauge theories can result in a massless photon that has perturbative couplings to both electric and magnetic charges. This framework can be used to p…
On Q-balls in Anti de Sitter Space
Arvind Rajaraman, Alexander Stewart, Christopher B. Verhaaren
We perform a general analysis of thin-wall Q-balls in AdS space. We provide numeric solutions and highly accurate analytic approximations over much of the parameter space. These an…
Slowly rotating Q-balls
Yahya Almumin, Julian Heeck, Arvind Rajaraman +1
Q-balls are non-topological solitons arising in scalar field theories. Solutions for rotating Q-balls (and the related boson stars) have been shown to exist when the angular moment…
Excited Q-Balls
Yahya Almumin, Julian Heeck, Arvind Rajaraman +1
Complex scalars in U(1)-symmetric potentials can form stable Q-balls, non-topological solitons that correspond to spherical bound-state solutions. If the U(1) charge of the Q-ball…
Proca Q-balls and Q-shells
Julian Heeck, Arvind Rajaraman, Rebecca Riley +1
Non-topological solitons such as Q-balls and Q-shells have been studied for scalar fields invariant under global and gauged U(1) symmetries. We generalize this framework to include…
The Ubiquity of Gauged Q-Shells
Julian Heeck, Arvind Rajaraman, Christopher B. Verhaaren
Non-topological gauged soliton solutions called Q-balls arise in many scalar field theories that are invariant under a U(1) gauge symmetry. The related, but qualitatively distinct,…
Mapping Gauged Q-Balls
Julian Heeck, Arvind Rajaraman, Rebecca Riley +1
Scalar field theories with particular U(1)-symmetric potentials contain non-topological soliton solutions called Q-balls. Promoting the U(1) to a gauge symmetry leads to the more c…
Spurious Poles in the Scattering of Electric and Magnetic Charges
John Terning, Christopher B. Verhaaren
Theories with both electric and magnetic charges ("mutually non-local" theories) have several major obstacles to calculating scattering amplitudes. Even when the interaction arises…
Understanding Q-Balls Beyond the Thin-Wall Limit
Julian Heeck, Arvind Rajaraman, Rebecca Riley +1
Complex scalar fields charged under a global U(1) symmetry can admit non-topological soliton configurations called Q-balls which are stable against decay into individual particles…
Radiation reaction, over-reaction, and under-reaction
Mario D'Andrea, Markus A. Luty, Christopher B. Verhaaren
The subject of radiation reaction in classical electromagnetism remains controversial over 120 years after the pioneering work of Lorentz. We give a simple but rigorous treatment o…
Resolving the Weinberg Paradox with Topology
John Terning, Christopher B. Verhaaren
Long ago Weinberg showed, from first principles, that the amplitude for a single photon exchange between an electric current and a magnetic current violates Lorentz invariance. The…
Dark Monopoles and SL(2,Z) Duality
John Terning, Christopher B. Verhaaren
We explore kinetic mixing between two Abelian gauge theories that have both electric and magnetic charges. When one of the photons becomes massive, novel effects arise in the low-e…