String Theory and Geometry

弦理论已经成为量子引力理论的主要候选。这个项目解决了几何和弦理论之间的相互作用，重点是时空的几何形状如何决定宇宙中观察到的物理现象。要研究的问题是如何在紧化10维弦理论或11维M理论时得到N=1个超对称弦真空。我们将特别关注跨越额外特殊维度的空间中的奇点如何影响我们四维世界的物理。希望在这个描述中自然地出现对质量和长度尺度的层次的理解。与大爆炸有关的宇宙奇点也将被研究。

String Theory has emerged as a leading candidate for a quantum theory of gravityThis project addresses the interplay between geometry and string theory, focusing on how the geometry of spacetime determines the physics observed in the universe. The problem to be investigates is how to obtain N=1 supersymmetric string vacua when one compactifies 10 dimensional string theory or 11 dimensional M theory. Particular attention will be given to how singularities in the spaces spanning the extra special dimensions affect the physics of our 4-dimensional world. It is hoped that an understanding of the hierarchy of mass and length scales will naturally occur in this description. Cosmological singularities relevant to the big bang will also be investigated.