English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 57042/90725 (63%)
造訪人次 : 12439767      線上人數 : 64
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/987654321/112438


    題名: Gauge dependence of the fermion quasiparticle poles in hot gauge theories
    作者: Shang-Yung Wang
    日期: 2004-09-15
    上傳時間: 2017-12-19 02:11:11 (UTC+8)
    摘要: The gauge dependence of the complex fermion quasiparticle poles corresponding to soft collective excitations is studied in hot gauge theories at one-loop order and next-to-leading order in the high-temperature expansion, with a view towards going beyond the leading order hard thermal loops and resummations thereof. We find that for collective excitations of momenta k ~ eT the dispersion relations are gauge independent, but the corresponding damping rates are gauge dependent. For k<<eT and in k \to 0 limit, both the dispersion relations and the damping rates are found to be gauge dependent. The gauge dependence of the position of the complex quasiparticle poles signals the need for resummation. Possible cancellation of the leading gauge dependence at two-loop order in the case of QED is briefly discussed.
    關聯: Phys. Rev. D70 (2004) 065011
    DOI: 10.1103/PhysRevD.70.065011
    顯示於類別:[物理學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    Gauge dependence of the fermion quasiparticle poles in hot gauge theories.pdf139KbAdobe PDF0檢視/開啟
    index.html0KbHTML62檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

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