English  |  正體中文  |  简体中文  |  Items with full text/Total items : 68069/68069 (100%)
Visitors : 23136073      Online Users : 380
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/38943

    Title: Inflation in R plus R-2 gravity with torsion
    Authors: Wang,CH;Wu,YH
    Contributors: 物理研究所
    Date: 2009
    Issue Date: 2010-07-08 13:59:55 (UTC+8)
    Publisher: 中央大學
    Abstract: 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.
    Appears in Collections:[物理研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明