Universal gravitational waves from interacting and clustered solitons

Causal soliton formation (e.g. oscillons, Q-balls) in the primordial Universe is expected to give rise to a universal gravitational wave (GW) background, at frequencies smaller than scales of nonlinearity. We show that modifications of the soliton density field, driven by soliton interactions or ini...

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Bibliographic Details
Main Authors: Kaloian D. Lozanov, Misao Sasaki, Volodymyr Takhistov
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269323007256