Two-dimensional regular string black hole via complete corrections

Shuxuan Ying

doi:10.1140/epjc/s10052-023-11756-9

EPJ

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2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 577
https://doi.org/10.1140/epjc/s10052-023-11756-9

Regular Article - Theoretical Physics

Two-dimensional regular string black hole via complete $α^{'}$ $\alpha ^{\prime }$ corrections

Shuxuan Ying^a

Department of Physics, Chongqing University, 401331, Chongqing, China

^a ysxuan@cqu.edu.cn

Received: 27 March 2023
Accepted: 24 June 2023
Published online: 7 July 2023

Abstract

In string theory, an important challenge is to show if the singularity of black holes can be smoothed out by the complete $α^{'}$ $\alpha ^{\prime }$ corrections. The simplest case is to consider a 2D string black hole or 3D black string. This problem was discussed in a gauged Wess–Zumino–Witten (WZW) model and the results are supposed to be correct to all orders in $α^{'}$ $\alpha ^{\prime }$ corrections. Based on the recent remarkable progress on classifying all the $α^{'}$ $\alpha ^{\prime }$ corrections, in this work, we re-study this problem with the low energy effective spacetime action, and provide classes of exact non-perturbative and non-singular solutions of the 2D black hole/3D black string via complete $α^{'}$ $\alpha ^{\prime }$ corrections.

© The Author(s) 2023

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