抄録
The time evolution of a higher-dimensional universe with a topology of R×Sd×SD is discussed by using the effective action in a high-temperature limit. The universe, which starts at high temperature, always comes out of thermal equilibrium. Consequently, nonthermal quantum effects such as particle production become very important. The conversion from gravitational entropy to matter entropy through particle production might give the present large entropy.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 2528-2538 |
| ページ数 | 11 |
| ジャーナル | Physical Review D |
| 巻 | 32 |
| 号 | 10 |
| DOI | |
| 出版ステータス | Published - 1985 1月 1 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 核物理学および高エネルギー物理学
- 物理学および天文学（その他）