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arXiv · 2303.15793

Black holes as spherically-symmetric horizon-bound objects

Pravin K. Dahal·Fil Simovic·Ioannis Soranidis·Daniel R. Terno
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Abstract

Working in a semi-classical setting, we consider solutions of the Einstein equations that exhibit light trapping in finite time according to distant observers. In spherical symmetry, we construct near-horizon quantities from the assumption of regularity of the renormalized expectation value of the energy-momentum tensor, and derive explicit coordinate transformations in the near-horizon region. We examine the boundary conditions appropriate for embedding the model into a cosmological background, describe their evaporation in the linear regime and highlight the observational consequences, while also discussing the implications for the laws of black hole mechanics.

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Pravin K. Dahal, Fil Simovic, Ioannis Soranidis, Daniel R. Terno. 2023-03-28. Black holes as spherically-symmetric horizon-bound objects. https://doi.org/10.1103/physrevd.108.104014

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