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Aspects of Black Hole Instabilities and Consequences

Aspects of Black Hole Instabilities and Consequences
Aspects of Black Hole Instabilities and Consequences
The core topic we study in this thesis is the concept of black hole instabilities. This in essence means that if one probes a black hole background with any classical field, modes scattering the black hole horizon which are growing in time are considered unstable.
There are many interesting questions which arise as a result of an unstable black hole perturbation, such as; what is the endpoint of the instability? What does the solution and phase diagram of such a black hole configuration look like? The answer in some
cases is that one finds hairy black hole solutions, which turn out to be even richer in their structure as we will explore in the second part of this thesis. Sometimes however, searching for an instability within the vast structure of black hole quasi-normal modes is itself an interesting task which requires robust numerical methods. One needs to use perturbative methods to guide the numerical search, which we discuss in the first half of this thesis.
University of Southampton
Rodgers, Paul, William
458881c5-fb65-497c-8163-8bedfadc55e1
Rodgers, Paul, William
458881c5-fb65-497c-8163-8bedfadc55e1
Masachs Gonzalez, Ramon
59aea1a5-1389-43c2-9ffc-5691d8717763
Campos Dias, Oscar
f01a8d9b-9597-4c32-9226-53a6e5500a54
Papadoulaki, Olga
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Rodgers, Paul, William (2021) Aspects of Black Hole Instabilities and Consequences. University of Southampton, Doctoral Thesis, 184pp.

Record type: Thesis (Doctoral)

Abstract

The core topic we study in this thesis is the concept of black hole instabilities. This in essence means that if one probes a black hole background with any classical field, modes scattering the black hole horizon which are growing in time are considered unstable.
There are many interesting questions which arise as a result of an unstable black hole perturbation, such as; what is the endpoint of the instability? What does the solution and phase diagram of such a black hole configuration look like? The answer in some
cases is that one finds hairy black hole solutions, which turn out to be even richer in their structure as we will explore in the second part of this thesis. Sometimes however, searching for an instability within the vast structure of black hole quasi-normal modes is itself an interesting task which requires robust numerical methods. One needs to use perturbative methods to guide the numerical search, which we discuss in the first half of this thesis.

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Published date: May 2021

Identifiers

Local EPrints ID: 452912
URI: http://eprints.soton.ac.uk/id/eprint/452912
PURE UUID: 82b205bf-1433-423d-92f8-a00570bfd024
ORCID for Paul, William Rodgers: ORCID iD orcid.org/0000-0002-5348-4956
ORCID for Oscar Campos Dias: ORCID iD orcid.org/0000-0003-4855-4750

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Date deposited: 06 Jan 2022 17:49
Last modified: 17 Mar 2024 03:35

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Contributors

Author: Paul, William Rodgers ORCID iD
Thesis advisor: Ramon Masachs Gonzalez
Thesis advisor: Oscar Campos Dias ORCID iD
Thesis advisor: Olga Papadoulaki

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