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arXiv · 1405.5804

Inflaton fluctuations in the presence of cosmological defects

Hing-Tong Cho·Kin-Wang Ng·I-Chin Wang
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Abstract

We study quantum fluctuations of a free massless scalar field during inflation in the presence of a point, line, or plane defect such as a black hole, cosmic string, or domain wall, using a perturbative expansion in powers of small defect parameters. We provide results for the scalar two-point correlation functions that show explicitly a small violation of translational invariance during inflation.

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Hing-Tong Cho, Kin-Wang Ng, I-Chin Wang. 2014-10-06. Inflaton fluctuations in the presence of cosmological defects. https://doi.org/10.1088/1475-7516%2F2014%2F11%2F023

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