教師資料查詢 | 類別: 期刊論文 | 教師: 曹慶堂 TSAO, CHING-TANG (瀏覽個人網頁)

標題: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)
語言英文
ISSN0370-2693
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
國別荷蘭
公開徵稿
出版型式紙本
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