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    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/38943


    題名: Inflation in R plus R-2 gravity with torsion
    作者: Wang,CH;Wu,YH
    貢獻者: 物理研究所
    關鍵詞: POINCARE GAUGE-THEORY;FUNDAMENTAL PARTICLES;COSMOLOGICAL MODELS;GENERAL-RELATIVITY;BIANCHI IDENTITIES;ENERGY
    日期: 2009
    上傳時間: 2010-07-08 13:59:55 (UTC+8)
    出版者: 中央大學
    摘要: We examine an inflationary model in R + R-2 gravity with torsion, where R-2 denotes five independent quadratic curvature invariants; it turns out that only two free parameters remain in this model. We show that the behavior of the scale factor a(t) is determined by two scalar fields, axial torsion chi(t) and the totally anti-symmetric curvature E(t), which satisfy two first-order differential equations. Considering chi approximate to 0 during inflation leads to a power-law inflation: a similar to (t + A)(p) where 1 < p <= 2, and the constant A is determined by the initial values of E, chi and the two parameters. After the end of inflation, chi and E will enter into an oscillatory phase.
    關聯: CLASSICAL AND QUANTUM GRAVITY
    顯示於類別:[物理研究所] 期刊論文

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