Short Distances in String Theory

这项拟议的研究涉及解决任何量子引力理论面临的基本理论和实验问题。霍金悖论、宇宙常数问题以及经典广义相对论在引力崩塌期间的崩溃，都是因为缺乏对经典时空是如何在短距离内从量子自由度中产生的理解而产生的。PI试图通过考虑渐近反de Sitter时空中的弦理论来解决这个问题。国际和平研究所还对将弦理论与实验宇宙学联系起来感兴趣。PI正在探索这样一种可能性，即对导致通货膨胀的充气动能项的不可重整化修正可能是可以观察到的。PI还在寻求具有扭曲紧凑化的弦理论模型，该模型将包含一种新型的暗物质粒子。

The proposed research involves addressing the fundamental problems both theoretical and experimental facing any quantum theory of gravity. The Hawking paradox, the cosmological constant problem and the breakdown of classical general relativity during gravitational collapse all arise because of a lack of understanding of how classical space-times emerge from quantum degrees of freedom at short distances. The PI intends to address this problem by considering string theory in asymptotically anti-de Sitter space-times. The PI is also interested in connecting String Theory with Experimental Cosmology. The PI is pursuing the possibility that non-renormalizable corrections to the kinetic energy terms of the inflaton responsible for inflation are potentially observable. The PI is also pursuing string theory models with warped compactifications that would contain a new type of dark matter particle.