Anisotropic inflation from vector impurity

Masashi Kimura, Sugumi Kanno, Jiro Soda, Shuichiro Yokoyama

Research output: Contribution to conferencePaperpeer-review

Abstract

We study an anisotropic inflationary scenario. We show that the universe undergoes anisotropic inflationary expansion due to a preferred direction determined by a vector. In particular, it is stressed that primordial gravitational waves can be induced from curvature perturbations. Hence, even in low scale inflation, a sizable amount of primordial gravitational waves may be produced during inflation. To verify this expectation, we study perturbations in the anisotropic inflationary background.

Original languageEnglish
Publication statusPublished - 2008
Externally publishedYes
Event18th Workshop on General Relativity and Gravitation in Japan, JGRG 2008 - Higashi-Hiroshima, Japan
Duration: Nov 17 2008Nov 21 2008

Other

Other18th Workshop on General Relativity and Gravitation in Japan, JGRG 2008
Country/TerritoryJapan
CityHigashi-Hiroshima
Period11/17/0811/21/08

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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