Quantum Black Holes in the Sky
Black Holes are possibly the most enigmatic objects in our universe. From their detection in gravitational waves upon their mergers, to their snapshot eating at the centres of galaxies, black hole astrophysics has undergone an observational renaissance in the past four years. Nevertheless, they rema...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Universe |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2218-1997/6/3/43 |
| _version_ | 1828118195951632384 |
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| author | Jahed Abedi Niayesh Afshordi Naritaka Oshita Qingwen Wang |
| author_facet | Jahed Abedi Niayesh Afshordi Naritaka Oshita Qingwen Wang |
| author_sort | Jahed Abedi |
| collection | DOAJ |
| description | Black Holes are possibly the most enigmatic objects in our universe. From their detection in gravitational waves upon their mergers, to their snapshot eating at the centres of galaxies, black hole astrophysics has undergone an observational renaissance in the past four years. Nevertheless, they remain active playgrounds for strong gravity and quantum effects, where novel aspects of the elusive theory of quantum gravity may be hard at work. In this review article, we provide an overview of the strong motivations for why “Quantum Black Holes” may be radically different from their classical counterparts in Einstein’s General Relativity. We then discuss the observational signatures of quantum black holes, focusing on gravitational wave echoes as smoking guns for quantum horizons (or exotic compact objects), which have led to significant recent excitement and activity. We review the theoretical underpinning of gravitational wave echoes and critically examine the seemingly contradictory observational claims regarding their (non-)existence. Finally, we discuss the future theoretical and observational landscape for unraveling the “Quantum Black Holes in the Sky”. |
| first_indexed | 2024-04-11T13:27:08Z |
| format | Article |
| id | doaj.art-c2dcf9f0b7844f86ae62b5746c53e098 |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-04-11T13:27:08Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-c2dcf9f0b7844f86ae62b5746c53e0982022-12-22T04:22:01ZengMDPI AGUniverse2218-19972020-03-01634310.3390/universe6030043universe6030043Quantum Black Holes in the SkyJahed Abedi0Niayesh Afshordi1Naritaka Oshita2Qingwen Wang3Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, GermanyDepartment of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, CanadaPerimeter Institute For Theoretical Physics, 31 Caroline St N, Waterloo, ON N2L 2Y5, CanadaDepartment of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, CanadaBlack Holes are possibly the most enigmatic objects in our universe. From their detection in gravitational waves upon their mergers, to their snapshot eating at the centres of galaxies, black hole astrophysics has undergone an observational renaissance in the past four years. Nevertheless, they remain active playgrounds for strong gravity and quantum effects, where novel aspects of the elusive theory of quantum gravity may be hard at work. In this review article, we provide an overview of the strong motivations for why “Quantum Black Holes” may be radically different from their classical counterparts in Einstein’s General Relativity. We then discuss the observational signatures of quantum black holes, focusing on gravitational wave echoes as smoking guns for quantum horizons (or exotic compact objects), which have led to significant recent excitement and activity. We review the theoretical underpinning of gravitational wave echoes and critically examine the seemingly contradictory observational claims regarding their (non-)existence. Finally, we discuss the future theoretical and observational landscape for unraveling the “Quantum Black Holes in the Sky”.https://www.mdpi.com/2218-1997/6/3/43black holesgravitational wavequantum gravity |
| spellingShingle | Jahed Abedi Niayesh Afshordi Naritaka Oshita Qingwen Wang Quantum Black Holes in the Sky Universe black holes gravitational wave quantum gravity |
| title | Quantum Black Holes in the Sky |
| title_full | Quantum Black Holes in the Sky |
| title_fullStr | Quantum Black Holes in the Sky |
| title_full_unstemmed | Quantum Black Holes in the Sky |
| title_short | Quantum Black Holes in the Sky |
| title_sort | quantum black holes in the sky |
| topic | black holes gravitational wave quantum gravity |
| url | https://www.mdpi.com/2218-1997/6/3/43 |
| work_keys_str_mv | AT jahedabedi quantumblackholesinthesky AT niayeshafshordi quantumblackholesinthesky AT naritakaoshita quantumblackholesinthesky AT qingwenwang quantumblackholesinthesky |