Published November 2009
| Published
Journal Article
Open
Inflaton two-point correlation in the presence of a cosmic string
- Creators
- Tseng, Chien-Yao
- Wise, Mark B.
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.
Additional Information
© 2009 The American Physical Society. Received 8 September 2009; published 13 November 2009. We thank S. Carroll for discussions particularly during the early stages of this work. We are grateful for the Department of Energy for partial support under Grant No. DE-FG03-92ER40701.Attached Files
Published - Tseng2009p6634Phys_Rev_D.pdf
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Tseng2009p6634Phys_Rev_D.pdf
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Additional details
- Eprint ID
- 17058
- Resolver ID
- CaltechAUTHORS:20100105-101518370
- DE-FG03-92ER40701
- Department of Energy
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2010-01-05Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field