English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49378/84106 (59%)
造訪人次 : 7371889      線上人數 : 59
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/80650

    題名: Stress-energy tensor correlators of a quantum field in Euclidean R^N and AdS^N spaces via the generalized zeta-function method
    作者: Cho, H. T.;Hu, B. L.
    貢獻者: 淡江大學物理學系
    日期: 2011-08-09
    上傳時間: 2013-02-25 12:28:51 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: In this paper we calculate the vacuum expectation values of the stress-energy bitensor of a massive quantum scalar field with general coupling to N-dimensional Euclidean spaces and hyperbolic spaces which are Euclidean sections of the anti-de Sitter spaces. These correlators, also known as the noise kernel, act as sources in the Einstein-Langevin equations of stochastic gravity [B. L. Hu and E. Verdaguer Living Rev. Relativity 11 3 (2008)][B. L. Hu and E. Verdaguer Classical Quantum Gravity 20 R1 (2003)] which govern the induced metric fluctuations beyond the mean-field dynamics described by the semiclassical Einstein equations of semiclassical gravity. Because these spaces are maximally symmetric the eigenmodes have analytic expressions which facilitate the computation of the zeta function [J. S. Dowker and R. Critchley Phys. Rev. D 13 224 (1976) J. S. Dowker and R. Critchley Phys. Rev. D 13 3224 (1976)][S. W. Hawking Commun. Math. Phys. 55 133 (1977)]. Upon taking the second functional variation of the generalized zeta function introduced in [N. G. Phillips and B. L. Hu Phys. Rev. D 55 6123 (1997)] we obtain the correlators of the stress tensor for these two classes of spacetimes. Both the short and the large geodesic distance limits of the correlators are presented for dimensions up to 11. We mention current research problems in early universe cosmology, black hole physics and gravity-fluid duality where these results can be usefully applied to.
    關聯: Physical Review D 84(4), 044032(18pages)
    DOI: 10.1103/PhysRevD.84.044032
    顯示於類別:[物理學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數
    PhysRevD.84.044032.pdf271KbAdobe PDF213檢視/開啟



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋