On the instability of general relativistic wormholes
Olivier Sarbach Universidad Michoacana de San Nicolas de Hidalgo
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.
Olivier Sarbach Universidad Michoacana de San Nicolas de Hidalgo
Maxim Lyutikov Purdue University
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
Ruth Gregory King's College London - Department of Mathematics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
David Kubiznak Perimeter Institute for Theoretical Physics
Aidan Brooks California Institute of Technology (Caltech) - LIGO Laboratory
Yanbei Chen California Institute of Technology (Caltech) - Physics Office
Richard Brito Max Planck Institute for Gravitational Physics - Albert Einstein Institute (AEI)
Carl-Johan Haster Canadian Institute for Theoretical Astrophysics (CITA)
Sylvia Zhu Albert Einstein Institute
keith Riles University of Michigan
Salvatore Vitale Massachusetts Institute of Technology (MIT)
Frans Pretorius Princeton University
James Steiner Massachusetts Institute of Technology (MIT)
Avery Broderick University of Waterloo
Ulrich Sperhake California Institute of Technology
Helvi Witek University of Cambridge
Roberto Emparan Institucio Catalana de Recerca I Estudis Avancats (ICREA) - Universitat de Barcelona
Don Page University of Alberta
Jonathan Weintroub Harvard University
Vincent Fish Massachusetts Institute of Technology (MIT)
Mareki Honma National Astronomical Observatory of Japan
Andrew Chael Harvard-Smithsonian Center for Astrophysics
Shep Doeleman Harvard University
Dan Marrone University of Chicago
Jonathan Weintroub Harvard University
Olivier Sarbach Universidad Michoacana de San Nicolas de Hidalgo
Maxim Lyutikov Purdue University
With the advent of black hole imaging, we are now moving forward to black hole cinema. This workshop aims to collect the expertise across the Event Horizon Telescope Collaboration to develop, implement and apply methods to access and interpret variability in M87 and Sgr A*. The goal is to lay the foundation for the first publications based on black hole movies.
We are entering an exponentially growing phase of gravitational-wave (GW) astronomy excitingly represented by the Nobel Prize in Physics last year - only two years after the first detection. The successful multi-messenger detection of binary neutron star merger in last August has triggered increasing interests to probe the neutron star post-merger gravitational radiations as they will give more decisive and informative description of the post-merger object itself and the GW/electromagnetic emission mechanism. As the post-merger GWs mainly lie in the 1kHz-4kHz band it becomes necessary and important to think about possible third-generation GW detectors that are primarily sensitive to the high frequency band.Â In this workshop we shall focus on possible science case and detector configuration for kHz high-frequency detectors. We will have several invited talks while leaving more time for free discussions. We hope this workshop can serve as a seed for much broader discussions in the GW astronomy community and help promote high frequency detectors as one of the development directions of third-generation GW detectors.
Black 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.
Computational Methods for General Relativistic Magnetohydrodynamics are important means of studying compact astrophysical objects such as neutron stars and core-collapse supernovae relevant e.g. to understand sources of gravitational radiation.Particular crucial elements of such methods including solving non-linear equations to extract the microphysical state from the conserved fluxes (endearingly called con2prim) or handling realistic equations of state (EOS) that are only given approximately in a tabulated manner. The state of the art for algorithms addressing these issue leaves to be desired and significantly limits stabilityaccuracy and performance of todays calculations.This workshop aims to review the known algorithmic and computational shortcomings list requirements that an ideal solution should haveand discuss potential practical solutions.
The 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.
With LIGO/VIRGO in operation and detecting gravitational waves, the era of gravitational wave astronomy is upon us. In anticipation of further observations, this workshop will discuss the physics, astrophysics, and observational prospects--as well as challenges--in gravitational wave sources including black holes, neutron stars, and other fascinating objects, in both the near and long term.