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arXiv 2012.146972020-12hep-thastro-ph.COgr-qchep-ph

Oscillons during Dirac-Born-Infeld Preheating

Yu Sang, Qing-Guo Huang

备注：: 5 pages, 4 figures; more results added, version accepted for publication in PLB
DOI：: 10.1016/j.physletb.2021.136781

英文摘要：

Oscillons are long-lived, localized, oscillating nonlinear excitations of a real scalar field which can be abundantly produced during preheating after inflation. We give the first $(3+1)$-dimensional simulation for the oscillon formation during preheating with noncanonical kinetic terms, e.g. the Dirac-Born-Infeld form, and find that the formation of oscillons is significantly influenced by the noncanonical effect.

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