• Editors' Suggestion

Model Independent Signatures of New Physics in the Inflationary Power Spectrum

Mark G. Jackson and Koenraad Schalm
Phys. Rev. Lett. 108, 111301 – Published 13 March 2012

Abstract

We compute the universal generic corrections to the inflationary power spectrum due to unknown high-energy physics. We arrive at this result via a careful integrating out of massive fields in the “in-in” formalism yielding a consistent and predictive low-energy effective description in time-dependent backgrounds. We find that the power spectrum is universally modified at order H/M, where H is the scale of inflation. This is qualitatively different from the universal corrections in time-independent backgrounds, and it suggests that such effects may be present in upcoming cosmological observations.

  • Figure
  • Received 27 July 2010

DOI:https://doi.org/10.1103/PhysRevLett.108.111301

© 2012 American Physical Society

Authors & Affiliations

Mark G. Jackson and Koenraad Schalm

  • Instituut-Lorentz for Theoretical Physics, University of Leiden, Leiden 2333CA, The Netherlands

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 108, Iss. 11 — 16 March 2012

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×