Short Distances in String Theory

拟议的研究涉及解决任何量子引力理论面临的理论和实验的基本问题。霍金悖论、宇宙常数问题以及经典广义相对论在引力坍缩过程中的失效，都是因为缺乏对经典时空如何在短距离上由量子自由度产生的理解而产生的。PI打算通过在渐近反德西特时空中考虑弦理论来解决这个问题。PI也对弦理论与实验宇宙学的联系感兴趣。PI正在寻求一种可能性，即对导致暴胀的暴胀的动能项进行不可重整的修正是潜在可观察到的。PI还在研究具有扭曲紧化的弦理论模型，该模型将包含一种新型暗物质粒子。

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.