论文标题
跨普兰克模式在宇宙学中的作用
Role of trans-Planckian modes in cosmology
论文作者
论文摘要
受通货膨胀宇宙学的旧跨普兰克（TP）问题的促进，已经猜想，任何一致的有效野外理论都应将TP模式保持在哈勃地平线后面，以防止它们转动经典，从而影响巨型观察。在本文中，我们提出了两个反对哈勃视野的论点，是TP审查制度猜想（TCC）中提出的奇异范围。首先，提出了TCC的改进，允许TP模式在地平线上生长，同时仍保持De-sitter的猜想有效。其次，我们表明TP模式甚至可以在哈勃地平线内井井有条，因此，这会否定了阻止它们越过它的基本原理。众所周知，TP模式的作用在温暖的通货膨胀率中较小，因为波动通常是古典的。与冷通货膨胀相比，这允许温暖的通货膨胀对TP问题更具弹性。为了了解这是多么健壮，我们的身份限制了量子模式在一种特定情况下会影响原始功率谱。
Motivated by the old trans-Planckian (TP) problem of inflationary cosmology, it has been conjectured that any consistent effective field theory should keep TP modes `hidden' behind the Hubble horizon, so as to prevent them from turning classical and thereby affecting macroscopic observations. In this paper we present two arguments against the Hubble horizon being a scale of singular significance as has been put forward in the TP Censorship Conjecture (TCC). First, refinements of TCC are presented that allow for the TP modes to grow beyond the horizon while still keeping the de-Sitter conjecture valid. Second, we show that TP modes can turn classical even well within the Hubble horizon, which, as such, negates this rationale behind keeping them from crossing it. The role of TP modes is known to be less of a problem in warm inflation, because fluctuations start out usually as classical. This allows warm inflation to be more resilient to the TP problem compared to cold inflation. To understand how robust this is, we identity limits where quantum modes can affect the primordial power spectrum in one specific case.
