Radiation and Relaxation of Oscillons
arXiv:1201.1934 · doi:10.1103/PhysRevD.85.085033
Abstract
We study oscillons, extremely long-lived localized oscillations of a scalar field, with three different potentials: quartic, sine-Gordon model and in a new class of convex potentials. We use an absorbing boundary at the end of the lattice to remove emitted radiation. The energy and the frequency of an oscillon evolve in time and are well fitted by a constant component and a decaying, radiative part obeying a power law as a function time. The power spectra of the emitted radiation show several distinct frequency peaks where oscillons release energy. In two dimensions, and with suitable initial conditions, oscillons do not decay within the range of the simulations, which in quartic theory reach 10^8 time units. While it is known that oscillons in three-dimensional quartic theory and sine-Gordon model decay relatively quickly, we observe a surprising persistence of the oscillons in the convex potential with no sign of demise up to 10^7 time units. This leads us to speculate that an oscillon in such a potential could actually live infinitely long both in two and three dimensions.
16 pages, 28 eps figures
References in corpus (26)
- Quantum Radiation of Oscillons
- Flat-top oscillons in an expanding universe
- Inflaton Fragmentation and Oscillon Formation in Three Dimensions
- Oscillons and Quasi-breathers in the ϕ^4 Klein-Gordon model
- Small amplitude quasi-breathers and oscillons
- A General Theory of Oscillon Dynamics
- An Electroweak Oscillon
- Emergence of Oscillons in an Expanding Background
- Generation of Coherent Structures After Cosmic Inflation
- Analytical Characterization of Oscillon Energy and Lifetime
- Some stationary properties of a -ball in arbitrary space dimensions
- Numerical Investigations of Oscillons in 2 Dimensions
- Unnatural Oscillon Lifetimes in an Expanding Background
- Oscillon resonances and creation of kinks in particle collisions
- A Phase Transition in U(1) Configuration Space: Oscillons as Remnants of Vortex-Antivortex Annihilation
- Oscillons and Domain Walls
- Numerical simulation of oscillatons: extracting the radiating tail
- Compact oscillons in the signum-Gordon model
- Numerical Simulation of an Electroweak Oscillon
- Creating kinks from particles
- Mass loss and longevity of gravitationally bound oscillating scalar lumps (oscillatons) in D-dimensions
- A Class of Nonperturbative Configurations in Abelian-Higgs Models: Complexity from Dynamical Symmetry Breaking
- Swaying oscillons in the signum-Gordon model
- Oscillons in dilaton-scalar theories
- Kink-Antikink Formation from an Oscillation Mode by Sudden Distortion of the Evolution Potential
- Fractal boundary basins in spherically symmetric theory
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