论文标题
渐近安全重力
Asymptotically safe gravity
论文作者
论文摘要
这是对渐近安全量子重力的介绍，解释了渐近安全性的主要思想及其如何解决量子重力中的预测性问题。在第一部分中，在功能重新归一化组的重力框架中讨论了一个渐近安全的固定点的概念，这也将简要审查。关于渐近安全重力的关键结果的简洁概述，然后对重要的开放问题进行了简短的讨论。第二部分强调了与物质的相互作用如何为所有量子重力模型提供观察性一致性测试，然后概述了渐近安全性结果及其对重力象征模型的影响。最后，简要讨论有效的渐近安全性是一种情况，在这种情况下，可以将渐近安全重力与其他量子重力方法连接起来。
This is an introduction to asymptotically safe quantum gravity, explaining the main idea of asymptotic safety and how it could solve the problem of predictivity in quantum gravity. In the first part, the concept of an asymptotically safe fixed point is discussed within the functional Renormalization Group framework for gravity, which is also briefly reviewed. A concise overview of key results on asymptotically safe gravity is followed by a short discussion of important open questions. The second part highlights how the interplay with matter provides observational consistency tests for all quantum-gravity models, followed by an overview of the state of results on asymptotic safety and its implications in gravity-matter models. Finally, effective asymptotic safety is briefly discussed as a scenario in which asymptotically safe gravity could be connected to other approaches to quantum gravity.
