Suppr超能文献

量子引力对暴涨场景的扩展。

Quantum gravity extension of the inflationary scenario.

机构信息

Institute for Gravitation and the Cosmos & Physics Department, Penn State, University Park, Pennsylvania 16802, USA.

出版信息

Phys Rev Lett. 2012 Dec 21;109(25):251301. doi: 10.1103/PhysRevLett.109.251301. Epub 2012 Dec 17.

Abstract

Since the standard inflationary paradigm is based on quantum field theory on classical space-times, it excludes the Planck era. Using techniques from loop quantum gravity, the paradigm is extended to a self-consistent theory from the Planck scale to the onset of slow roll inflation, covering some 11 orders of magnitude in energy density and curvature. This preinflationary dynamics also opens a small window for novel effects, e.g., a source for non-Gaussianities, which could extend the reach of cosmological observations to the deep Planck regime of the early Universe.

摘要

由于标准的通胀范式是基于经典时空中的量子场论,因此它排除了普朗克时代。利用循环量子引力的技术,该范式扩展到一个自洽的理论,从普朗克尺度到缓慢滚动通胀的开始,涵盖了大约 11 个数量级的能量密度和曲率。这种预通胀动力学也为新效应开辟了一个小窗口,例如非高斯效应的源,这可能将宇宙观测的范围扩展到早期宇宙的深普朗克区域。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验