Superstring Theory, Black-Hole Physics, Gauge Theories and Noncommutative Geometry

在理解弦理论结构方面的最新进展来自于理解将非微扰效应与微扰效应联系起来的对偶对称网络。这个提议的重点是更好地理解这些不同的对偶性，以及它们对弦理论背后的非微扰理论的影响。PI将研究不同维度上的测量和未测量超重力网之间的相互关系。PI还将研究弦理论对引力物理、粒子物理和宇宙学的现象学意义。PI将研究的一个相关主题是在非常高的能量下时空的非对易性质。

Recent progress in understanding the structure of String theory has come from understanding the web of duality symmetries relating nonperturbative effects to perturbative ones. This proposal focuses on developing a better understanding of these various dualities and their implication to the nonperturbative theory underlying string theory. The PI will study the interrelationships among the web of gauged and ungauged supergravities in various dimensions. The PI will also investigate the phenomenological implications of string theory to gravitational physics, particle physics and cosmology. A related topic the PI will investigate is the noncommutative nature of space-time at very high energies.