2009年8月
Phenomenological aspects of Horava-Lifshitz cosmology
PHYSICS LETTERS B
- ,
- ,
- ,
- 巻
- 679
- 号
- 1
- 開始ページ
- 6
- 終了ページ
- 9
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physletb.2009.07.005
- 出版者・発行元
- ELSEVIER SCIENCE BV
We show that, assuming the dispersion relation proposed recently by Horava in the context of quantum gravity, radiation energy density exhibits a peculiar dependence on the scale factor: the radiation energy density decreases proportional to a(-6). This simple scaling can have an impact on cosmology. As an example, we show that the resultant baryon asymmetry as well as the stochastic gravity waves can be enhanced. We also discuss current observational constraint on the dispersion relation. (C) 2009 Elsevier B.V. All rights reserved.
- リンク情報
-
- DOI
- https://doi.org/10.1016/j.physletb.2009.07.005
- arXiv
- http://arxiv.org/abs/arXiv:0905.0055
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000269299900002&DestApp=WOS_CPL
- URL
- http://arxiv.org/abs/0905.0055v2
- ID情報
-
- DOI : 10.1016/j.physletb.2009.07.005
- ISSN : 0370-2693
- arXiv ID : arXiv:0905.0055
- Web of Science ID : WOS:000269299900002