Symmetric multifield oscillons
arXiv:2010.07789 · doi:10.1103/PhysRevD.106.096018
Abstract
Oscillons are long-lived, spatially localized field configurations, which are supported by attractive non-linearities in the scalar potential. We study oscillons comprised of multiple interacting fields, each having an identical potential with quadratic, quartic and sextic terms. We consider quartic interaction terms of either attractive or repulsive nature. In the two-field case, we construct semi-analytical oscillon profiles for different values of the potential parameters and coupling strength using the two-timing small-amplitude formalism. We use analytical and numerical techniques to explore the basin of attraction of stable oscillon solutions and show that, depending on the initial perturbation size, unstable oscillons can either completely disperse or relax to the closest stable configuration. We generalize our analysis to multifield oscillons and show that the governing equations for their shape and stability can be mapped to the ones arising in the two-field case. Finally, we study the emergence of multicomponent oscillons in one and three spatial dimensions, both numerically and through Floquet theory.
arXiv comment46 pages, 21 figures, improvements and edits corresponding to the published version
References in corpus (41)
- Universality Class in Conformal Inflation
- Superconformal Inflationary -Attractors
- The Unity of Cosmological Attractors
- Oscillons: Resonant Configurations During Bubble Collapse
- Oscillons After Inflation
- Pseudo-Stable Bubbles
- Self-resonance after inflation: oscillons, transients and radiation domination
- Quantum Radiation of Oscillons
- The Hyperbolic Geometry of Cosmological Attractors
- Flat-top oscillons in an expanding universe
- I-balls
- Gravitational perturbations from oscillons and transients after inflation
- Gravitational Waves from Oscillon Preheating
- Gravitational waves from oscillons after inflation
- Radiation and Relaxation of Oscillons
- Gravitational Waves from Oscillons with Cuspy Potentials
- A General Theory of Oscillon Dynamics
- An Electroweak Oscillon
- On Longevity of I-ball/Oscillon
- Gravitational waves from asymmetric oscillon dynamics?
- Classical Decay Rates of Oscillons
- Gravitational wave forest from string axiverse
- An Oscillon in the SU(2) Gauged Higgs Model
- Generation of Coherent Structures After Cosmic Inflation
- Radiation of scalar oscillons in 2 and 3 dimensions
- Computation of the radiation amplitude of oscillons
- K-Oscillons: Oscillons with Non-Canonical Kinetic Terms
- Decay of I-ball/Oscillon in Classical Field Theory
- Pole Inflation - Shift Symmetry and Universal Corrections
- On preheating in alpha-attractor models of inflation
- Charge-Swapping Q-balls
- Numerical Simulation of an Electroweak Oscillon
- Gravitational wave spectra from oscillon formation after inflation
- Universality and scaling in multi-field -attractor preheating
- Gravitational wave production after inflation with cuspy potentials
- Recipes for Oscillon Longevity
- Adiabatic Invariance of Oscillons/I-balls
- Charge-Swapping Q-balls and Their Lifetimes
- Oscillons and oscillating kinks in the Abelian-Higgs model
- Symmetric solitonic excitations of the (1+1)-dimensional Abelian-Higgs "classical vacuum"
- Analysis of Oscillons in the SU(2) Gauged Higgs Model