论文标题
分析无限的导数重力，$ r^2 $ - 像通货膨胀，量子重力和CMB
Analytic infinite derivative gravity, $R^2$-like inflation, quantum gravity and CMB
论文作者
论文摘要
$ r^2 $通货膨胀的出现，这是迄今为止CMB观察的最佳拟合框架，源于攻击重力量化问题的尝试，这又导致了痕量异常发现。旨在构建量子重力的痕量异常和不同框架的进一步发展表明，在较小的时间和长度尺度上，基本物理学中非本地性的不可避免。一个自然的问题是，将$ r^2 $通货膨胀作为对早期宇宙物理学非本地性签名的调查。嵌入$ r^2 $通货膨胀在字符串理论中启发的非本地重力修改的最新进展提供了非常有希望的理论预测，该预测将早期宇宙中的非本地物理和即将到来的CMB观察结果连接起来。
Emergence of $R^2$ inflation which is the best fit framework for CMB observations till date comes from the attempts to attack the problem of quantization of gravity which in turn have resulted in the trace anomaly discovery. Further developments in trace anomaly and different frameworks aiming to construct quantum gravity indicate an inevitability of non-locality in fundamental physics at small time and length scales. A natural question would be to employ the $R^2$ inflation as a probe for signatures of non-locality in the early Universe physics. Recent advances of embedding $R^2$ inflation in a string theory inspired non-local gravity modification provides very promising theoretical predictions connecting the non-local physics in the early Universe and the forthcoming CMB observations.
