Mass and horizon Dirac observables in effective models of quantum black-to-white hole transition

  title={Mass and horizon Dirac observables in effective models of quantum black-to-white hole transition},
  author={Norbert Bodendorfer and Fabio M. Mele and Johannes M{\"u}nch},
  journal={Classical and Quantum Gravity},
In the past years, black holes and the fate of their singularity have been heavily studied within loop quantum gravity. Effective spacetime descriptions incorporating quantum geometry corrections are provided by the so-called polymer models. Despite the technical differences, the main common feature shared by these models is that the classical singularity is resolved by a black-to-white hole transition. In a recent paper (Bodendorfer et al 2019 Class. Quantum Grav. 36 195015), we discussed the… 
Quantum corrected polymer black hole thermodynamics: mass relations and logarithmic entropy correction
In this paper, we continue the analysis of the effective model of quantum Schwarzschild black holes recently proposed by some of the authors in [1,2]. In the resulting quantum-corrected spacetime the
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Dynamical black-hole scenarios have been developed in loop quantum gravity in various ways, combining results from mini and midisuperspace models. In the past, the underlying geometry of space-time
From black hole to white hole via the intermediate static state
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Testing Loop Quantum Gravity from Observational Consequences of Nonsingular Rotating Black Holes.
It is shown how fundamental parameters of LQG can be constrained by the observational implications of the shadow cast by this object, and the causal structure of the solution depends crucially only on the spacelike transition surface of the nonrotating seed metric, while being agnostic about specific details of the latter, and therefore captures universal features of an effective rotating, nonsingular black hole in L QG.
Deformed General Relativity and Quantum Black Holes Interior
Effective models of black holes interior have led to several proposals for regular black holes. In the so-called polymer models, based on effective deformations of the phase space of spherically
On the possible spacetime structures of rotating loop quantum black holes
  • Che-yu Chen
  • Physics
    International Journal of Geometric Methods in Modern Physics
  • 2022
To date, a mathematically consistent construction of effective rotating black hole models in the context of Loop Quantum Gravity (LQG) is still lacking. In this work, we start with the assumption


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The physical interpretation and eventual fate of gravitational singularities in a theory surpassing classical general relativity are puzzling questions that have generated a great deal of interest
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The interior of a Schwarzschild black hole is investigated at the level of phenomenological dynamics with the discreteness corrections of loop quantum geometry implemented in two different improved
Space-Time Structure of Loop Quantum Black Hole
In this paper we have improved the semiclassical analysis of loop quantum black hole (LQBH) in the conservative approach of constant polymeric parameter. In particular we have focused our attention
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The fundamental theory and the semiclassical description of loop quantum cosmology (LQC) have been studied in the Friedmann-Robertson-Walker and Bianchi I models. As an extension to include both
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We calculate the black-hole entropy in loop quantum gravity as a function of the horizon area and provide the exact formula for the leading and sub-leading terms. By comparison with the