Quasinormal modes and gravitational waves
Lead Research Organisation:
University of Cambridge
Department Name: Applied Maths and Theoretical Physics
Abstract
Disturbed black holes decay back to their ground state through a process known as 'quasinormal ringdown': gravitational waves are produced which exhibit both oscillatory behaviour and exponential decay, characterised by a discrete spectrum of complex numbers. With improvement in gravitational wave detectors, quasinormal ringdown is expected to be an important observational signal for gravitational wave astronomy. Recent mathematical work of Vasy and Warnick among others has provided an improved mathematical understanding of this spectrum as well as new approaches to compute the quasinormal frequencies. The goal of this project will be to adapt methods from the mathematical literature to better understand how the quasinormal spectrum of a black hole determines the geometry. One may think of this as an astrophysical version of the classical question from spectral theory: 'can you hear the shape of a drum'.
Organisations
People |
ORCID iD |
Claude Warnick (Primary Supervisor) | |
Jason Joykutty (Student) |
Publications
Joykutty J
(2022)
Existence of Zero-Damped Quasinormal Frequencies for Nearly Extremal Black Holes
in Annales Henri Poincaré
Joykutty J
(2023)
Quasinormal Modes of Nearly Extremal Black Holes
Studentship Projects
Project Reference | Relationship | Related To | Start | End | Student Name |
---|---|---|---|---|---|
ST/S505298/1 | 30/09/2018 | 29/09/2022 | |||
2267798 | Studentship | ST/S505298/1 | 30/09/2019 | 30/03/2023 | Jason Joykutty |
ST/T505973/1 | 30/09/2019 | 29/09/2023 | |||
2267798 | Studentship | ST/T505973/1 | 30/09/2019 | 30/03/2023 | Jason Joykutty |