残余引力波、微波背景辐射及其探测
首发时间:2010-03-31
摘要:本文讨论了宇宙残余引力波的产生、给出了残余引力波的解析谱,以及作为初始条件的极早期暴涨过程的影响,同时给出了残余引力波作为源所产生的微波背景辐射的温度各向异性和偏振的解析谱,其中包括了宇宙再电离过程对于谱的修正。讨论了目前引力波探测方法和现状、着重研究了通过微波背景辐射探测宇宙残余引力波的方法和存在的问题,尤其是宇宙再电离导致的困难。
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Relic Gravitational Waves, Cosmic Microwave Background Radiation, and their Detections
Abstract:In this paper we study the relic gravitational waves (RGWs), derive its analytical spectrum, demonstrate the impact of inflation during the very early stage. We also derive the analytical spectra of reionized CMB temperature anisotropies and polarization. We discuss various methods of gravitational wave detection, summarize the current status. In particular, we explore the possible detection of RGWs through CMB temperature anisotropies and polarization, and investigate the difficulties arising from the entanglements caused by the reionization.
Keywords: Relic Gravitational Waves Cosmic Microwave Background Radiation Detection Cosmology,
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No.4136249627127000****
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