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Searching for Quantum Black Hole Structure with the Event Horizon Telescope

1
Department of Physics, University of California, Santa Barbara, CA 93106, USA
2
CERN, Theory Department, 1 Esplande des Particules, CH-1211 Geneva 23, Switzerland
Universe 2019, 5(9), 201; https://doi.org/10.3390/universe5090201
Received: 25 May 2019 / Revised: 8 September 2019 / Accepted: 8 September 2019 / Published: 17 September 2019
(This article belongs to the Special Issue Probing New Physics with Black Holes)
The impressive images from the Event Horizon Telescope (EHT) sharpen the conflict between our observations of gravitational phenomena and the principles of quantum mechanics. Two related scenarios for reconciling quantum mechanics with the existence of black hole-like objects, with “minimal” departure from general relativity and local quantum field theory, have been explored; one of these could produce signatures visible to EHT observations. A specific target is temporal variability of images, with a characteristic time scale determined by the classical black hole radius. The absence of evidence for such variability in the initial observational span of seven days is not expected to strongly constrain such variability. Theoretical and observational next steps towards investigating such scenarios are outlined. View Full-Text
Keywords: black holes; Event Horizon Telescope; quantum gravity black holes; Event Horizon Telescope; quantum gravity
MDPI and ACS Style

Giddings, S.B. Searching for Quantum Black Hole Structure with the Event Horizon Telescope. Universe 2019, 5, 201.

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