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Paper detail

Inflaton Two-Point Correlation in the Presence of a Cosmic String

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.

preprint2009arXivOpen access
Chien-Yao TsengMark B. Wise
astro-ph.CO
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Chien-Yao TsengMark B. Wise

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