Stochastic evolution of scalar fields with continuous symmetries during inflation

During inflation, scalar fields with masses less than the Hubble scale acquire vacuum expectation values (VEVs) via stochastic processes driven by quantum fluctuations. For nearly massless spectator scalars transforming nontrivially under a continuous symmetry group, we demonstrate that the evolutio...

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Veröffentlicht in:	Physical review. D 2020-07, Vol.102 (2), p.1, Article 023526
Hauptverfasser:	Adshead, Peter, Pearce, Lauren, Shelton, Jessie, Weiner, Zachary J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Constraint modelling Evolution Scalars Stochastic processes
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