Results 41 to 50 of about 529 (80)

Proca Q-balls and Q-shells

Journal of High Energy Physics, 2021
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 frame-work to include a Proca mass for the gauge boson, which can arise either from ...
Julian Heeck, Arvind Rajaraman, Rebecca Riley, Christopher B. Verhaaren   +3 more
doaj   +1 more source

Excited oscillons and charge-swapping

Journal of High Energy Physics
We show that the charge-swapping phenomenon can be understood as a real valued oscillon carrying an excitation in imaginary direction in the target space.
A. Alonso-Izquierdo, D. Canillas Martínez, T. Romańczukiewicz, K. Sławińska, A. Wereszczyński   +4 more
doaj   +1 more source

Moduli spaces of instantons in flag manifold sigma models. Vortices in quiver gauge theories

Journal of High Energy Physics
In this paper, we discuss lumps (sigma model instantons) in flag manifold sigma models. In particular, we focus on the moduli space of BPS lumps in general Kähler flag manifold sigma models. Such a Kähler flag manifold, which takes the form U n 1 + ⋯ + n
Toshiaki Fujimori, Muneto Nitta, Keisuke Ohashi   +2 more
doaj   +1 more source

Oscillons and bubbles in Q-ball dynamics

Journal of High Energy Physics
We show that, in the thin-wall regime, Q-ball-anti-Q-ball collisions reveal chaotic behaviour. This is explained by the resonant energy transfer mechanism triggered by the internal modes hosted by the Q-balls and by the existence of ephemeral states ...
D. Canillas Martínez, P. Dorey, T. Romańczukiewicz, Paul M. Saffin, K. Sławińska, A. Wereszczyński   +5 more
doaj   +1 more source

Generalized virial identities: radial constraints for solitons, instantons, and bounces

Journal of High Energy Physics
We derive a continuous family of virial identities for O(n) symmetric configurations, parameterized by an exponent α that controls the radial weighting.
Jonathan Lozano-Mayo
doaj   +1 more source

Dynamically assisted Sauter-Schwinger effect — non-perturbative versus perturbative aspects

Journal of High Energy Physics, 2017
The Sauter-Schwinger effect predicts the creation of electron-positron pairs out of the quantum vacuum by a strong and slowly varying electric field.
G. Torgrimsson, C. Schneider, J. Oertel, R. Schützhold   +3 more
doaj   +1 more source

False vacuum decay of excited states in finite-time instanton calculus

Journal of High Energy Physics
Extracting information about a system’s metastable ground state energy employing functional methods usually hinges on utilizing the late-time behavior of the Euclidean propagator, practically impeding the possibility of determining decay widths of ...
B. Garbrecht, N. Wagner
doaj   +1 more source

A supersymmetric exotic field theory in (1+1) dimensions: one loop soliton quantum mass corrections

Journal of High Energy Physics, 2018
We consider one loop quantum corrections to soliton mass for the N = 1 $$ \mathcal{N}=1 $$ supersymmetric extension of the (1+1)-dimensional scalar field theory with the potential U (ϕ) = ϕ 2 cos2 (ln ϕ 2).
A. R. Aguirre, G. Flores-Hidalgo
doaj   +1 more source

Transplanckian censorship and global cosmic strings

Journal of High Energy Physics, 2017
Large field excursions are required in a number of axion models of inflation. These models also possess global cosmic strings, around which the axion follows a path mirroring the inflationary trajectory. Cosmic strings are thus an interesting theoretical
Matthew J. Dolan, Patrick Draper, Jonathan Kozaczuk, Hiren Patel   +3 more
doaj   +1 more source

JNR Skyrmions

Journal of High Energy Physics
The JNR ansatz provides a simple formula to obtain families of charge N self-dual SU(2) Yang-Mills instantons in four-dimensional Euclidean space, from the free data of N + 1 distinct points with associated positive weights.
Paul Sutcliffe
doaj   +1 more source