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Publication Detailed Description
Journal Title
Physical Review D
Year (definitive publication)
2023
Language
English
Country
United States of America
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Abstract
Quantum gravity phenomenology suggests the interesting possibility that black holes are not eternal. Collapse could be halted by some unknown mechanism, or Hawking radiation might leave behind a regular spacetime. Here we investigate a simple bouncing geometry, with (outer and inner) apparent horizons but no event horizon. We show that the inner horizon blueshifts radiation, which can lead to a gigantic amplification of energy observable from far away regions. Thus, if such phenomena exist in our Universe, then they can power high-energy bursts at late stages in their lives, when the horizons disappear and spacetime bounces back to a flat geometry.
Acknowledgements
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Keywords
Fields of Science and Technology Classification
- Physical Sciences - Natural Sciences
Funding Records
| Funding Reference | Funding Entity |
|---|---|
| VIL37766 | VILLUM Foundation |
| UIDB/04459/2020 | Fundação para a Ciência e a Tecnologia |
| 202106040037 | China Scholarship Council |
| DNRF162 | DNRF Chair |
| UIDB/00099/2020 | Fundação para a Ciência e a Tecnologia |
| CERN/FIS-PAR/0023/2019 | Fundação para a Ciência e a Tecnologia |
| PTDC/FIS-AST/7002/2020 | Fundação para a Ciência e a Tecnologia |
| UIDP/04459/2020 | Fundação para a Ciência e a Tecnologia |
| 101052587 | Comissão Europeia |
| UIDB/04459/2020 | Fundação para a Ciência e a Tecnologia |
| 101007855 | Comissão Europeia |
| 2022.01324.PTDC | Fundação para a Ciência e a Tecnologia |
Related Projects
This publication is an output of the following project(s):
