关于背景独立性和规范冗余的讨论
Comments on Background Independence and Gauge Redundancies
摘要：
我们描述了背景独立性的定义和作用，以及与之密切相关的超同态不变性在现代弦论中的作用。这些重要的概念是通过对规范冗余的新理解及其在非微扰量子场论和量子引力中的实现而转变的。这种新的理解也为所谓的背景独立方法提供了一个新的角色，即直接模拟引力场。本文面向普通读者，基于在墨西哥莫雷利亚举行的Loops 2007会议上的全体会议。
英文摘要：
We describe the definition and the role background independence and the closely related notion of diffeomorphism invariance play in modern string theory. These important concepts are transformed by a new understanding of gauge redundancies and their implementation in non-perturbative quantum field theory and quantum gravity. This new understanding also suggests a new role for the so-called background-independent approaches to directly quantize the gravitational field. This article is intended for a general audience, and is based on a plenary talk given in the Loops 2007 conference in Morelia, Mexico.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
