Staccato radiation from the decay of large amplitude oscillons

Abstract

We study the decay of large amplitude, almost periodic breather-like states in a deformed sine-Gordon model in one spatial dimension. We discover that these objects decay in a staggered fashion via a series of transitions, during which higher harmonics are released as short, staccato bursts of radiation. Further, we argue that this phenomenon is not restricted to one particular model, and that similar mechanisms of radiative decay of long-lived oscillating states can be observed for a wide class of physical systems, including the ${\varphi }^6$ model.

arXiv comment6 pages, 6 figures, 4 audio-video files, minor changes

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• The Structure of the Oscillon: The Dynamics of Attractive Self-Interaction
• The Simplest Oscillon and its Sphaleron
• Charge-Swapping Q-balls and Their Lifetimes
• Resonance structures in kink-antikink collisions in a deformed sine-Gordon model
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• Excited oscillons: cascading levels and higher multipoles
• Analytic description of monodromy oscillons
• Collapse instability and staccato decay of oscillons in various dimensions
• Dimensional deformation of sine-Gordon breathers into oscillons
• Vacuum state perturbed by an oscillon: composite configurations in ${\varphi }^4$ model