arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0909.3426gr-qc
收藏

没有时空奇点或视界的量子引力

Quantum gravity without space-time singularities or horizons

Gerard 't Hooft

摘要:

在试图重新建立时空作为表述量子引力的基本框架--而不是“涌现”框架--的过程中,我们发现尺度变换下的精确不变性是这种理论的一个重要的新成分。利用“黑洞互补性”的原则,即观察者进入一个黑洞描述其动态的方式,似乎是从根本上不同的描述由外部观察者的概念。这些差异可以归结为保角变换。如果我们把这些加到对称变换中,黑洞、时空奇点和视界就会消失,而因果性和定域性则可能作为量子引力的重要原理而存在。

英文摘要:

In an attempt to re-establish space-time as an essential frame for formulating quantum gravity - rather than an "emergent" one -, we find that exact invariance under scale transformations is an essential new ingredient for such a theory. Use is made of the principle of "black hole complementarity", the notion that observers entering a black hole describe its dynamics in a way that appears to be fundamentally different from the description by an outside observer. These differences can be boiled down to conformal transformations. If we add these to our set of symmetry transformations, black holes, space-time singularities, and horizons disappear, while causality and locality may survive as important principles for quantum gravity.

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。

↑