On black hole area quantization and echoes. (21st January 2022)

• Record Type: Journal Article
• Authors: Coates, Andrew; Völkel, Sebastian H; Kokkotas, Kostas D
• Is Part Of: Classical and quantum gravity. Volume 39:Number 4(2022)
• Publication Date: 2022-01-21
• Subjects: black holes -- gravitational wave echoes -- gravitational waves -- area quantization -- quasinormal modes; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/ac4618
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: In this work we argue that black hole (BH) area quantization of Bekenstein and Mukhanov should not give rise to measurable effects in terms of so-called gravitational wave echoes during BH mergers. We outline that the quantum spectrum of a BH should be washed out during and after BH mergers, and hence one should not expect echoes in this scenario. The extreme broadening of the spectrum is due to the large particle emission rate during ringdown. Our results question key assumptions being made in recent literature on this topic.