Charged black holes from T-duality

TL;DR

This paper introduces a family of regular charged black hole solutions influenced by string T-duality, exploring their thermodynamics and potential implications for string theory phenomenology.

Contribution

It presents new regular black hole solutions incorporating T-duality effects using Padmanabhan's propagator, linking string theory concepts with classical black hole physics.

Findings

Static solutions resemble Ayón-Beato--García spacetime with charge redefinition

Regular black holes exhibit specific thermodynamic properties

Potential implications for string theory phenomenology

Abstract

In this paper, we present a family of regular black hole solutions in the presence of charge and angular momentum. We also discuss the related thermodynamics and we comment about the black hole life cycle during the balding and spin down phases. Interestingly the static solution resembles the Ay\'on-Beato--Garc\'ia spacetime, provided the T-duality scale is redefined in terms of the electric charge, $l_0\to Q$. The key factor at the basis of our derivation is the employment of Padmanabhan's propagator to calculate static potentials. Such a propagator encodes string T-duality effects. This means that the regularity of the spacetimes here presented can open a new window on string theory phenomenology.