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Non‐Flat Universes and Black Holes in Asymptotically Free Mimetic Gravity
Fortschritte der Physik ( IF 3.9 ) Pub Date : 2019-12-23 , DOI: 10.1002/prop.201900103
Ali H. Chamseddine 1, 2 , Viatcheslav Mukhanov 2, 3, 4 , Tobias B. Russ 2
Affiliation  

The recently proposed theory of “Asymptotically Free Mimetic Gravity” is extended to the general non‐homogeneous, spatially non‐flat case. We present a modified theory of gravity which is free of higher derivatives of the metric. In this theory asymptotic freedom of gravity implies the existence of a minimal black hole with vanishing Hawking temperature. Introducing a spatial curvature dependent potential, we moreover obtain non‐singular, bouncing modifications of spatially non‐flat Friedmann and Bianchi universes.

中文翻译:

渐近自由拟态引力中的非平坦宇宙和黑洞

最近提出的“渐近自由拟态引力”理论已扩展到一般的非均匀,空间非平坦情况。我们提出了一种改良的引力理论,该理论不含度量的更高导数。在该理论中,重力的渐近自由意味着存在最小的黑洞,霍金温度逐渐消失。通过引入与空间曲率有关的电势,我们还获得了对空间非平坦的Friedmann和Bianchi宇宙的非奇异的,弹跳的修改。
更新日期:2019-12-23
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