Conformal scaling gauge symmetry and inflationary universe | |
Wu, YL; Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. | |
刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A |
2005 | |
卷号 | 20期号:4页码:811-820 |
关键词 | Probe Wmap Observations Angular Power Spectrum Field Gravitation Flatness Horizon |
ISSN号 | 0217-751X |
英文摘要 | Considering the conformal scaling gauge symmetry as a fundamental symmetry of nature in the presence of gravity, a scalar field is required and used to describe the scale behavior of the universe. In order for the scalar field to be a physical field, a gauge field is necessary to be introduced. A gauge invariant potential action is constructed by adopting the scalar field and a real Wilson-like line element of the gauge field. Of particular, the conformal scaling gauge symmetry can be broken down explicitly via fixing gauge to match the Einstein-Hilbert action of gravity. As a nontrivial background field solution of pure gauge has a minimal energy in gauge interactions, the evolution of the universe is then dominated at earlier time by the potential energy of background field characterized by a scalar field. Since the background field of pure gauge leads to an exponential potential model of a scalar field, the universe is driven by a power-law inflation with the scale factor a(t) similar to t(p). The power-law index p is determined by a basic gauge fixing parameter g(F) via p = 16 pi g(F)(2) [1 + 3/(4 pi g(F)(2))]. For the gauge fixing scale being the Planck mass, we are led to a predictive model with g(F) = 1 and p similar or equal to 62. |
学科主题 | Physics |
URL标识 | 查看原文 |
WOS记录号 | WOS:000227797900003 |
公开日期 | 2012-08-30 |
内容类型 | 期刊论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/13879] |
专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
通讯作者 | Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
推荐引用方式 GB/T 7714 | Wu, YL,Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.. Conformal scaling gauge symmetry and inflationary universe[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2005,20(4):811-820. |
APA | Wu, YL,&Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2005).Conformal scaling gauge symmetry and inflationary universe.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,20(4),811-820. |
MLA | Wu, YL,et al."Conformal scaling gauge symmetry and inflationary universe".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 20.4(2005):811-820. |
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