Quantum Gravity Effects in Black Holes and Gravitational Waves
APA
AmelinoCamelia, G., Mattingly, D., Yunes, N. & Broderick, A. (2012). Quantum Gravity Effects in Black Holes and Gravitational Waves. Perimeter Institute. https://pirsa.org/12100094
MLA
AmelinoCamelia, Giovanni, et al. Quantum Gravity Effects in Black Holes and Gravitational Waves. Perimeter Institute, Oct. 23, 2012, https://pirsa.org/12100094
BibTex
@misc{ pirsa_PIRSA:12100094, doi = {10.48660/12100094}, url = {https://pirsa.org/12100094}, author = {AmelinoCamelia, Giovanni and Mattingly, David and Yunes, Nicolas and Broderick, Avery}, keywords = {Quantum Gravity}, language = {en}, title = {Quantum Gravity Effects in Black Holes and Gravitational Waves}, publisher = {Perimeter Institute}, year = {2012}, month = {oct}, note = {PIRSA:12100094 see, \url{https://pirsa.org}} }

Sapienza Università di Roma  Dipartimento di Fisica

University of New Hampshire

University of Illinois UrbanaChampaign

University of Waterloo
Collection
Talk Type
Subject
Abstract
Quantumgravity effects as noise for
gravitywave detectors
I discuss a mechanism that can allow Planck scale effects to manifest themselves as a source of loffrequency noise for interferometers. The mechanism requires a discrete formulation of dynamics at the Planck scale.
____________________
Dancing in the Dark: Images of Quantum Black Holes
There have recently been a number of rather surprising suggestions that the quantum nature of black holes is manifested on macroscopic scales. This raises the question of just what the image of such an object should look like. The answer is more than simply academic; with the advent of the Event Horizon Telescope (EHT), a millimetrewave very long baseline array, it is now possible to probe a handful of supermassive black holes with angular resolutions sufficient to image their horizons. I will discuss what we might expect to see, and how in the near future we will begin to empirically probe the existence of black hole quantum states with horizon scale curvature deviations from general relativity.
_____________________
The Irritating Persistence of Horizons
In some approaches to quantum gravity Lorentz invariance is modified. Without Lorentz invariance one can theoretically see behind the usual Killing horizon of a black hole if, for example, one allowed for superluminal propagation. This in turn raises the possibility that one could in principle probe the singularity and the quantum gravity regime. We discuss how Lorentz violating black hole solutions in Einsteinaether theory unfortunately possess another causal boundary behind the Killing horizon that is impenetrable to any superluminal mode. We also detail progress in determining the laws of black hole mechanics and the radiation spectrum from these socalled "universal horizons". Our results suggest that even if superluminal dispersion at high frequencies did exist in nature, singularities and their associated quantum gravity resolutions may very well remain locked behind horizons.
I discuss a mechanism that can allow Planck scale effects to manifest themselves as a source of loffrequency noise for interferometers. The mechanism requires a discrete formulation of dynamics at the Planck scale.
____________________
Dancing in the Dark: Images of Quantum Black Holes
There have recently been a number of rather surprising suggestions that the quantum nature of black holes is manifested on macroscopic scales. This raises the question of just what the image of such an object should look like. The answer is more than simply academic; with the advent of the Event Horizon Telescope (EHT), a millimetrewave very long baseline array, it is now possible to probe a handful of supermassive black holes with angular resolutions sufficient to image their horizons. I will discuss what we might expect to see, and how in the near future we will begin to empirically probe the existence of black hole quantum states with horizon scale curvature deviations from general relativity.
_____________________
The Irritating Persistence of Horizons
In some approaches to quantum gravity Lorentz invariance is modified. Without Lorentz invariance one can theoretically see behind the usual Killing horizon of a black hole if, for example, one allowed for superluminal propagation. This in turn raises the possibility that one could in principle probe the singularity and the quantum gravity regime. We discuss how Lorentz violating black hole solutions in Einsteinaether theory unfortunately possess another causal boundary behind the Killing horizon that is impenetrable to any superluminal mode. We also detail progress in determining the laws of black hole mechanics and the radiation spectrum from these socalled "universal horizons". Our results suggest that even if superluminal dispersion at high frequencies did exist in nature, singularities and their associated quantum gravity resolutions may very well remain locked behind horizons.