Soliton boson stars, Q-balls and the causal Buchdahl bound

Abstract
Self-gravitating non-topological solitons whose potential admits multiple vacua are promising candidates for exotic compact objects. Such objects can arise in several extensions of the Standard Model and could be produced in the early Universe. In this work, we focus on objects made from complex scalars (gravitating Q-balls/soliton boson stars), deriving analytic solutions in spherical symmetry and comparing them with fully numerical ones. In...
Paper Details
Title
Soliton boson stars, Q-balls and the causal Buchdahl bound
Published Date
Nov 6, 2021
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