Gravitational effects on oscillon lifetimes

Many scalar field theories with attractive self-interactions support exceptionally long-lived, spatially localized and time-periodic field configurations called oscillons. They can form naturally in the very early universe close to the big bang, or in dark matter in the present-day universe. To better understand their cosmological implications, it is crucial to study oscillon decay rates and lifetimes. In this short talk, I will first review such a method that can be applied to oscillons for generic potentials (including non-polynomial ones), and then discuss the gravitational effects on oscillon lifetimes.