Inflaton fluctuations in the presence of cosmological defects
| Autor: | Hing-Tong Cho, I-Chin Wang, Kin-Wang Ng |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
High Energy Physics - Theory
Physics Inflation (cosmology) Scalar (mathematics) FOS: Physical sciences Astronomy and Astrophysics Inflaton Cosmic string Black hole Domain wall (string theory) General Relativity and Quantum Cosmology High Energy Physics - Theory (hep-th) Quantum electrodynamics Scalar field Quantum fluctuation |
| Zdroj: | Journal of Cosmology and Astroparticle Physics |
| DOI: | 10.48550/arxiv.1405.5804 |
| Popis: | 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. Comment: 16 pages. arXiv admin note: text overlap with arXiv:0905.2041 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|