Researchers have, for the first time, identified the sufficient and necessary conditions that the low-energy limit of quantum gravity theories must satisfy to preserve the main features of the Unruh effect.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2018/1-quantum.jpg)
Source:
https://phys.org/news/2019-08-key-piece-quantum-gravity-affects.html