Holography from the Planck scale to the hubble scale

弦理论是量子引力理论的主要候选者。 它承诺将粒子物理学的基本力与广义相对论所描述的引力统一起来。 然而，最近的进展告诉我们，有必要从根本上改变我们对量子引力中空间和时间基本结构的理解。 我们必须把时空看作是全息图，因为时空区域的基本自由度存在于该区域的边界上，而不是内部。 我的研究计划调查量子引力的这种新特性的应用-被称为全息术-在理论物理学中两个最令人兴奋和最重要的开放问题。

String theory is the leading candidate for a theory of quantum gravity. It promises to unify the fundamental forces of particle physics with the force of gravity, as described by the theory of general relativity. Recent advances, however, have taught us that it is necessary to radically change our understanding of the basic structure of space and time in quantum gravity. We must think of space-time as hologram, in the sense that the basic degrees of freedom of a region of space-time live on the boundary of that region, rather than in the interior. My research program investigates applications of this novel feature of quantum gravity - known as holography - to two of the most exciting and important open questions in theoretical physics.