Large non-Gaussian halo bias from single field inflation

Ivan Agullo, Sarah Shandera

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

We calculate Large Scale Structure observables for non-Gaussianity arising from non-Bunch-Davies initial states in single field inflation. These scenarios can have substantial primordial non-Gaussianity from squeezed (but observable) momentum configurations. They generate a term in the halo bias that may be more strongly scale-dependent than the contribution from the local ansatz. We also discuss theoretical considerations required to generate an observable signature.

Original languageEnglish (US)
Article number007
JournalJournal of Cosmology and Astroparticle Physics
Volume2012
Issue number9
DOIs
StatePublished - Sep 2012

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

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