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 1706.06809hep-thgr-qc
收藏

霍氏引力是渐近自由的(2+1维)

Hořava gravity is asymptotically free (in 2+1 dimensions)

Andrei O. Barvinsky, Diego Blas, Mario Herrero-Valea, Sergey M. Sibiryakov, Christian F. Steinwachs

摘要:

在$2+1$时空维中计算了可投射的Hoenava引力中边缘耦合的$β$ -函数。我们证明了重整化群流在紫外线(UV)有一个渐近自由的不动点,建立了具有动力学引力自由度的UV完备模型的理论。因此,这个理论可以作为一个玩具模型来研究量子引力的基本方面。我们的研究结果代表了一个前进的一步,了解现实版本的Hoenava引力的紫外特性。

英文摘要:

We compute the $β$-functions of marginal couplings in projectable Hořava gravity in $2+1$ spacetime dimensions. We show that the renormalization group flow has an asymptotically-free fixed point in the ultraviolet (UV), establishing the theory as a UV-complete model with dynamical gravitational degrees of freedom. Therefore, this theory may serve as a toy-model to study fundamental aspects of quantum gravity. Our results represent a step forward towards understanding the UV properties of realistic versions of Hořava 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。

↑