On the origin of dark energy in brane world cosmology

Kiyotomo Ichiki, Ken Ichi Umezu, Toshitaka Kajino, Grant J. Mathews, Riou Nakamura, Masanobu Yahiro

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

We investigate the cosmological evolution in a brane-world scenario in which the bulk is not empty. Rather, exchange of mass-energy between the bulk and the bane is allowed. The expansion history of the universe and the evolution of matter fields on the brane are then modified due to this exchange. We show that the flow of matter realizes an accelerating expansion of the brane, which mimics the dark energy. We investigate the constraints from various cosmological observations on the flow of matter from the bulk into the brane. Interestingly, it is possible to have a Λ = 0 cosmology to an observer in the brane which satisfies standard cosmological constraints including the CMB temperature fluctuations, Type Ia supernovae at high redshift, and the matter power spectrum.

本文言語英語
ホスト出版物のタイトルORIGIN OF MATTER AND EVOLUTION OF GALAXIES
ホスト出版物のサブタイトルInternational Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
出版社American Institute of Physics Inc.
ページ15-20
ページ数6
ISBN(印刷版)0735403422, 9780735403420
DOI
出版ステータス出版済み - 1 1 2006
イベントORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology - Tokyo, 日本
継続期間: 11 8 200511 11 2005

出版物シリーズ

名前AIP Conference Proceedings
847
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

その他

その他ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
国/地域日本
CityTokyo
Period11/8/0511/11/05

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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