Black Hole Evaporation in Loop Quantum Gravity
arXiv:2502.04252 · doi:10.1007/s10714-025-03380-7
Abstract
The conference \emph{Black Holes Inside and Out} marked the 50th anniversary of Hawking's seminal paper on black hole radiance. It was clear already from Hawking's analysis that a proper quantum gravity theory would be essential for a more complete understanding of the evaporation process. This task was undertaken in Loop Quantum Gravity (LQG) two decades ago and by now the literature on the subject is quite rich. The goal of this contribution is to summarize a mainstream perspective that has emerged. The intended audience is the broader gravitational physics community, rather than quantum gravity experts. Therefore, the emphasis is on conceptual issues, especially on the key features that distinguish the LQG approach, and on concrete results that underlie the paradigm that has emerged. This is \emph{not} meant to be an exhaustive review. Rather, it is a broad-brush stroke portrait of the present status. Further details can be found in the references listed.
26 pages; 11 Figures. A slightly updated version of a chapter in arXiv:2410.14414 that contains invited talks of the "Black Holes Inside Out" conference. At the request of the journal, Remark (v) was added at the end of Section IV. It provides a brief comparison of the main discussion to ideas on black hole evaporation from string theory/holography. Gen. Rel. and Grav. (2025, at press)
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Cited by in corpus (5)
- Quasi-Local Black Hole Horizons: Recent Advances
- Quantum entanglement of Hawking-Partner modes in expanding cavities
- Dynamical Horizon Segments and Spacetime Isometries
- Vacuum-purified Hawking radiation from evaporating black holes: Lessons from moving mirrors
- Correction to Hawking radiation in non-singular gravitational collapse