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Conformal scaling gauge symmetry and inflationary universe
Wu, YL; Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
2005
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS A
ISSN0217-751X
卷号20期号:4页码:811-820
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.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Probe Wmap Observations Angular Power Spectrum Field Gravitation Flatness Horizon
学科领域Physics
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收录类别SCI
WOS记录号WOS:000227797900003
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13879
专题理论物理所1978-2010年知识产出
通讯作者Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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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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