期刊
PHYSICS LETTERS B
卷 797, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2019.134888
关键词
Quantum corrected black hole; String T-duality; Zero-point length; Path integral duality
资金
- Stiftung Polytechnische Gesellschaft Frankfurt am Main
- project Evaporation of microscopic black holes of the German Research Foundation (DFG) [NI 1282/3-1]
- Helmholtz International Center for FAIR
- GNFM, the Italian National Group for Mathematical Physics
In this letter we present some stringy corrections to black hole spacetimes emerging from string T-duality. As a first step, we derive the static Newtonian potential by exploiting the relation between the T-duality and the path integral duality. We show that the intrinsic non-perturbative nature of stringy corrections introduces an ultraviolet cutoff known as zero-point length in the path integral duality literature. As a result, the static potential is found to be regular. We use this result to derive a consistent black hole metric for the spherically symmetric, electrically neutral case. It turns out that the new spacetime is regular and is formally equivalent to the Bardeen metric, apart from a different ultraviolet regulator. On the thermodynamics side, the Hawking temperature admits a maximum before a cooling down phase towards a thermodynamically stable end of the black hole evaporation process. The findings support the idea of universality of quantum black holes. (C) 2019 The Author(s). Published by Elsevier B.V.
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