Inflaton two-point correlation in the presence of a cosmic string

Chien-Yao Tseng and Mark B. Wise
Phys. Rev. D 80, 103512 – Published 13 November 2009

Abstract

Precise measurements of the microwave background anisotropy have confirmed the inflationary picture of approximately scale invariant, Gaussian primordial adiabatic density perturbations. However, there are some anomalies that suggest a small violation of rotational and/or translational invariance in the mechanism that generates the primordial density fluctuations. Motivated by this we study the two-point correlation of a massless scalar (the inflaton) when the stress tensor contains the energy density from an infinitely long straight cosmic string in addition to a cosmological constant.

  • Received 8 September 2009

DOI:https://doi.org/10.1103/PhysRevD.80.103512

©2009 American Physical Society

Authors & Affiliations

Chien-Yao Tseng and Mark B. Wise

  • California Institute of Technology, Pasadena, California 91125, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 80, Iss. 10 — 15 November 2009

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×