Quest for eternal oscillons

Abstract

Nonlinear field theories produce unstable but long-lived configurations known as oscillons. These structures have been studied with asymmetric and symmetric double-well potentials and extended to other forms of potentials. In the present work, we examine the consequences of considering higher-order field theories, where we have used a generalization of the symmetric double-well potential and a ${\varphi }^6$ potential. Consequently, we have found $3+1$ spherically symmetric oscillons with significantly large lifetimes without parameter fine-tuning.

arXiv comment8 pages, 10 figures, accepted to be published in Physical Review D

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• Analytic description of monodromy oscillons