Searching for New Particles with Black Hole Superradiance
11
talks
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Collection Number
C18010
Strong Gravity research at Perimeter Institute is devoted to understanding both the theoretical and observational aspects of systems in which gravity is very strong (i.e., spacetime is highly curved or dynamical],. On one hand, this means studying extreme astrophysical systems, like black holes and neutron stars, as well as making and testing predictions for existing and forthcoming gravitational wave detectors, electromagnetic telescopes, and particle astrophysics experiments. On the other hand, it also includes a range of non-astrophysical topics, such as the instabilities of higher-dimensional black holes or the dynamics of strongly-coupled quantum field theories (via holography). The goal of strong gravity researcher is to test the validity of Einstein's theory of gravity, constrain proposed alternatives, understand the most extreme astrophysical systems, and investigate the ways in which highly curved or dynamical spacetimes are linked with a range of other problems in fundamental physics.
Displaying 13 - 24 of 582
Format results
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Talk
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Searching for Light Bosons with Black Hole Superradiance
Perimeter Institute for Theoretical Physics -
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Superradiant instabilities and rotating black holes
University of Waterloo -
Measuring Stellar-Mass Black Hole Spins via X-ray Spectroscopy
Massachusetts Institute of Technology (MIT) -
Superradiance Beyond the Linear Regime
Princeton University -
Characterization of compact objects with present and future ground-based gravitational-wave detectors
Massachusetts Institute of Technology (MIT) -
LIGO and Virgo continuous wave searches - Overview and all-sky searches
University of Michigan–Ann Arbor -
Directed and targeted searches for continuous gravitational waves
Albert Einstein Institute
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Quantum Black Holes in the Sky?
34 talks-Collection NumberC17055Talk
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Quantifying the evidence for black holes with GW and EM probes
Instituto Superior Tecnico - Departamento de Física -
Echoes from the Abyss: Tentative Evidence for Planck-Scale Structure at Black Hole Horizons
University of Stavanger (UiS) -
Improvements on the methods for searching echoes
Albert Einstein Institute -
A model-independent search for gravitational-wave echoes
Institucio Catalana de Recerca I Estudis Avancats (ICREA) - Universitat de Barcelona -
An alternative significance estimation for the evidence for echoes
Albert Einstein Institute -
Discussion: Evidence for Echoes
PIRSA:17110074 -
Inspiral Tests of Strong-field Gravity and Ringdown Tests of Quantum Black Holes
University of Virginia -
A Recipe for Echoes
The University of Texas at Austin
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PSI 2017/2018 - Relativity (Turok)
15 talks-Collection NumberC17036Talk
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PSI 2017/2018 - Relativity - Lecture 1
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 2
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 3
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 4
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 5
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 6
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 7
University of Edinburgh -
PSI 2017/2018 - Relativity - Lecture 8
University of Edinburgh
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PSI 2016/2017 - Relativity (Turok)
14 talks-Collection NumberC16010Talk
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PSI 2016/2017 - Relativity - Lecture 1
University of Edinburgh -
PSI 2016/2017 - Relativity - Lecture 2
University of Edinburgh -
PSI 2016/2017 - Relativity - Lecture 3
University of Edinburgh -
PSI 2016/2017 - Relativity - Lecture 4
University of Edinburgh -
PSI 2016/2017 - Relativity - Lecture 5
University of Edinburgh -
PSI 2016/2017 - Relativity - Lecture 6
University of Edinburgh -
PSI 2016/2017 - Relativity - Lecture 7
University of Edinburgh -
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EHT 2014
54 talks-Collection NumberC14041Talk
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Welcome to Perimeter Institute and the EHT 2014 Conference
University of Edinburgh -
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Growth of supermassive black holes and their relationships to their host galaxies
Institut d'Astrophysique de Paris -
Polarized emission from Black Hole Accretion Disks and Jets
University of Maryland, College Park -
Stellar Orbits at the Galactic Center
University of California, Los Angeles -
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Particle Acceleration and Non-thermal Emission in Radiatively Inefficient Accretion Flows
University of California, Berkeley
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Lecture - Relativity, PHYS 604
Perimeter Institute for Theoretical Physics -
Lecture - Relativity, PHYS 604
Perimeter Institute for Theoretical Physics -
Lecture - Relativity, PHYS 604
Perimeter Institute for Theoretical Physics -
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Lecture - Relativity, PHYS 604
Perimeter Institute for Theoretical Physics -
Lecture - Relativity, PHYS 604
Perimeter Institute for Theoretical Physics -
The dynamics of dRGT massive gravity
Imperial College London
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Searching for New Particles with Black Hole Superradiance
11 talks-Collection NumberC18010Black hole superradiance is a fascinating process in general relativity and a unique window on ultralight particles beyond the standard model. Bosons -- such as axions and dark photons -- with Compton wavelengths comparable to size of astrophysical black holes grow exponentially to form large clouds spinning down the black hole in the process and produce monochromatic continuous gravitational wave radiation. In the era of gravitational wave astronomy and increasingly sensitive observations of astrophysical black holes and their properties superradiance of new light particles is a promising avenue to search for new physics in regimes inaccessible to terrestrial experiments. This workshop will bring together theorists data analysts and observers in particle physics gravitational wave astronomy strong gravity and high energy astrophysics to explore the signatures of black hole superradiance and to study the current and future possibilities of searching for new particles with black holes.
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Quantum Black Holes in the Sky?
34 talks-Collection NumberC17055The past decade has witnessed significant breakthroughs in understanding the quantum nature of black holes, with insights coming from quantum information theory, numerical relativity, and string theory. At the same time, astrophysical and gravitational wave observations can now provide an unprecedented window into the phenomenology of black hole horizons. This workshop seeks to bring together leading experts in these fields to explore new theoretical and observational opportunities and synergies that could improve our physical understanding of quantum black holes.
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PSI 2017/2018 - Relativity (Turok)
15 talks-Collection NumberC17036PSI 2017/2018 - Relativity (Turok) -
PSI 2016/2017 - Relativity (Turok)
14 talks-Collection NumberC16010PSI 2016/2017 - Relativity (Turok) -
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Testing General Relativity with Ensembles of Compact Binary Mergers: the Importance of Astrophysics and Statistical Assumptions
CaltechObservations of gravitational waves from binary black-hole mergers provide a unique testbed for General Relativity in the strong-field regime. To extract the most information, many gravitational-wave signals can be used in concert to place constraints on theories beyond General Relativity. Although these hierarchical inference methods have allowed for more informative tests, careful consideration is needed when working with astrophysical observations. Assumptions about the underlying astrophysical population and the detectability of possible deviations can influence hierarchical analyses, potentially biasing the results. In this talk, I will address these key assumptions and discuss their mitigation. Finally, I will demonstrate how we can leverage the astrophysical nature of gravitational-wave observations to our advantage to empirically bound the curvature dependence of extensions to General Relativity.
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The dynamics of dRGT massive gravity
Imperial College LondonAfter reviewing the motivation and challenges connected with the dRGT theory of ghost-free massive gravity, we discuss our recent progress in understanding non-linear dynamics of this model. In spherical symmetry, numerical studies suggest the formation of naked singularities during gravitational collapse of matter. Analytically, the same can be seen in the limit where the graviton mass is much smaller than the scales of the matter present. Both of these results underline the need to move beyond spherical symmetry to try and obtain realistic predictions. To that end, we present a new ‘harmonic-inspired’ formulation of the minimal model and argue that it is well-posed, opening the door to full 3+1 numerical simulations.