Matter and forces near physical black holes

Dahal, Pravin Kumar; Ioannis, Soranidis,; Terno, Daniel R.

doi:10.1103/physrevd.106.124048

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…Similarly, if the equation f (t, r) = 0 has more than one solution, the innermost surface r in is timelike as well. As a result, these definitions of the inner and outer horizons coincide with the invariant definitions [46], and a RBH in an asymptotically flat spacetime has the schematic Carter-Penrose diagram shown in Fig. 1(a).…”

Section: A General Set-up and Admissible Solutionsmentioning

confidence: 72%

“…In the following we consider only PBHs. The outer and (if it exists) inner components of the black hole apparent horizon are timelike, making definitions that are based on (t, r) or (v, r) coordinates coincide with the invariant definition [36,46]. A schematic Carter-Penrose diagram for a RBH in an asymptotically flat spacetime is shown in Fig 1(a).…”

Section: A General Set-up and Admissible Solutionsmentioning

confidence: 99%

“…From the definition of the apparent horizon it follows that w 1 1. The inequality is saturated at the formation of the PBH (more details can be found in [46]).…”

Section: A General Set-up and Admissible Solutionsmentioning

confidence: 99%

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Physical black holes in cosmological spacetimes

Dahal¹,

Simovic²,

Ioannis³

et al. 2023

Preprint

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Working in the semi-classical setting, we present an exactly solvable candidate model for astrophysical black holes, which can be embedded in a cosmological background and possess regular apparent horizons that form in finite observational time. 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 discuss the appropriate boundary conditions for the embedding of the model into an FRWL background, describe their evaporation in the linear regime, and highlight consequences for the laws of black hole mechanics when back-reaction is present.

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Section: A General Set-up and Admissible Solutionsmentioning

confidence: 72%

Section: A General Set-up and Admissible Solutionsmentioning

confidence: 99%