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题名: Conformal scaling gauge symmetry and inflationary universe
作者: Wu, YL
刊名: INTERNATIONAL JOURNAL OF MODERN PHYSICS A
出版日期: 2005
卷号: 20, 期号:4, 页码:811-820
关键词: PROBE WMAP OBSERVATIONS ;  ANGULAR POWER SPECTRUM ;  FIELD ;  GRAVITATION ;  FLATNESS ;  HORIZON
学科分类: Physics
通讯作者: Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000227797900003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13879
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wu, YL. Conformal scaling gauge symmetry and inflationary universe[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2005,20(4):811-820.
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