| Cosmological constant from gauge fields on extra dimensions | |
|---|---|
| 學年 | 95 |
| 學期 | 1 |
| 出版（發表）日期 | 2006-12-01 |
| 作品名稱 | Cosmological constant from gauge fields on extra dimensions |
| 作品名稱（其他語言） | |
| 著者 | Cho, Hing-Tong; Ho, Choon-Lin; Ng, Kin-Wang |
| 單位 | 淡江大學物理學系 |
| 出版者 | Amsterdam: Elsevier BV * North-Holland |
| 著錄名稱、卷期、頁數 | Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 643(2), pp.71-75 |
| 摘要 | We present a new model of dark energy which could explain the observed accelerated expansion of our Universe. We show that a five-dimensional Einstein-Yang-Mills theory defined in a flat Friedmann-Robertson-Walker universe compactified on a circle possesses degenerate vacua in four dimensions. The present Universe could be trapped in one of these degenerate vacua. With the natural requirement that the size of the extra dimension could be of the GUT scale or smaller, the energy density difference between the degenerate vacua and the true ground state can provide us with just the right amount of dark energy to account for the observed expansion rate of our Universe. |
| 關鍵字 | High Energy Physics - Phenomenology (hep-ph);Astrophysics (astro-ph) |
| 語言 | en |
| ISSN | 0370-2693 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Ng, Kin-Wang |
| 審稿制度 | |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72723 ) |
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