對於初始能譜長波段截止的研究

Abstract

有許多文獻探討宇宙背景輻射的非等向性溫度分布中，l = 2模態的強度和理論預測相比異常偏低的問題。大部分的文獻都提出和標準暴漲模型不同的預測，認為宇宙初始能譜在大尺度的部分有截止的現象。我們研究一個在暴漲期之前具有一段物質主宰時期的早期宇宙模型，並且以第一原理進行計算，檢查這樣的截止現象是否存在。

The problem of quadrupole anomaly in the cosmic microwave background temperature anisotropy spectrum is treated in many works. Most of them provide scenarios different from the one of standard inflation and point to a cutoff of power in the primordial power spectrum at large scales. We study the scenario of the early universe with a pre-inflation matter era, and make an ab initio calculation to check the existence of the infrared cutoff.