Simplest oscillon and its sphaleron
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review D"
DOI: 10.1103/physrevd.107.085012
Abstract: Oscillons in a simple, 1-dimensional scalar field theory with a cubic potential are discussed. The theory has a classical sphaleron, whose decay generates a version of the oscillon. A good approximation to the small-amplitude oscillon… read more here.
Keywords: simplest oscillon; oscillon sphaleron; sphaleron; oscillon ... See more keywords
Enhanced Gravitational Waves from Inflaton Oscillons.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.181002
Abstract: In broad classes of inflationary models the period of accelerated expansion is followed by fragmentation of the inflaton scalar field into localized, long-lived, and massive oscillon excitations. We demonstrate that matter dominance of oscillons, followed… read more here.
Keywords: oscillon; enhanced gravitational; gravitational waves; oscillon induced ... See more keywords
Axially symmetric continuum mechanical model for the oscillon
Sign Up to like & getrecommendations! Published in 2022 at "Mathematics and Mechanics of Solids"
DOI: 10.1177/10812865221107413
Abstract: The oscillon is a highly localized dynamical phenomenon occurring in a thin horizontal layer of granular material, which rests on a rigid plate oscillating in the vertical direction. The geometry is axially symmetric and physically… read more here.
Keywords: oscillon; plate; continuum mechanical; crater ... See more keywords