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arXiv 1503.06472hep-thgr-qc
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渐近安全引力中的黑洞

Black holes in Asymptotically Safe Gravity

Frank Saueressig, Natalia Alkofer, Giulio D'Odorico, Francesca Vidotto

摘要:

黑洞是我们宇宙中最迷人的物体之一。它们的特征,包括时空奇点、事件视界和黑洞热力学,为量子引力思想提供了丰富的试验场。在这份说明中,我们观察到,重整化群改进的史瓦西黑洞构造的Bonanno和Weinberg的渐近安全程序内构成一个典型的例子海沃德几何模型内的非奇异量子引力现象学的黑洞。此外,它们还具有普朗克星的许多特征:它们的有效几何自然地包含了在有效场论框架中发现的单圈修正,它们的Kretschmann标量是有界的,黑洞奇点被规则的de Sitter补丁所取代。简要讨论了宇宙学常数在重整化群改进过程中的作用。

英文摘要:

Black holes are among the most fascinating objects populating our universe. Their characteristic features, encompassing spacetime singularities, event horizons, and black hole thermodynamics, provide a rich testing ground for quantum gravity ideas. In this note we observe that the renormalization group improved Schwarzschild black holes constructed by Bonanno and Reuter within Weinberg's asymptotic safety program constitute a prototypical example of a Hayward geometry used to model non-singular black holes within quantum gravity phenomenology. Moreover, they share many features of a Planck star: their effective geometry naturally incorporates the one-loop corrections found in the effective field theory framework, their Kretschmann scalar is bounded, and the black hole singularity is replaced by a regular de Sitter patch. The role of the cosmological constant in the renormalization group improvement process is briefly discussed.

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。

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