Mimicking features in alternatives to inflation with interacting spectator fields

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Guillem Domènech
  • Javier Rubio
  • Julius Wons

Externe Organisationen

  • Ruprecht-Karls-Universität Heidelberg
  • Universität Helsinki
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)263-269
Seitenumfang7
FachzeitschriftPhysics Letters: B
Jahrgang790
Frühes Online-Datum23 Jan. 2019
PublikationsstatusVeröffentlicht - 10 März 2019
Extern publiziertJa

Abstract

It has been argued that oscillatory features from spectator fields in the primordial power spectrum could be a probe of alternatives to inflation. In this work, we soften this claim by showing that the frequency and amplitude dependence of the patterns appearing in these scenarios could be mimicked by field interactions during inflation. The degeneracy of the frequency holds for the n-point correlation functions, while the degeneracy of the amplitude is broken at the level of non-gaussianities.

ASJC Scopus Sachgebiete

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Mimicking features in alternatives to inflation with interacting spectator fields. / Domènech, Guillem; Rubio, Javier; Wons, Julius.
in: Physics Letters: B, Jahrgang 790, 10.03.2019, S. 263-269.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Domènech G, Rubio J, Wons J. Mimicking features in alternatives to inflation with interacting spectator fields. Physics Letters: B. 2019 Mär 10;790:263-269. Epub 2019 Jan 23. doi: 10.1016/j.physletb.2019.01.039
Domènech, Guillem ; Rubio, Javier ; Wons, Julius. / Mimicking features in alternatives to inflation with interacting spectator fields. in: Physics Letters: B. 2019 ; Jahrgang 790. S. 263-269.
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