Page Not Found
Page not found. Your pixels are in another canvas.
Sitemap
A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
Pages
Welcome
About me
Posts
portfolio
publications
Frequency-domain approach to self-force in hyperbolic scattering
In this paper we develop a frequency-domain code to calculate the scalar-field self-force along hyperbolic orbits in the Schwarzschild spacetime. Chosen as an Editors' Selection in Physical Review D and recipient of the 2023 STAG Research Center prize for best student publication in gravitational physics.
Citation: C. Whittall and L. Barack, "Frequency-domain approach to self-force in hyperbolic scattering", Phys. Rev. D 108, 064017 (2023), arXiv:2305.09724 [gr-qc] [link]
Black hole scattering near the transition to plunge: Self-force and resummation of post-Minkowskian theory
In this paper we demonstrate how strong-field self-force information can be used to resum weak-field post-Minkowskian series for the scatter angle during hyperbolic encounters, significantly extending the latter's domain of validity.
Citation: O. Long, C. Whittall and L. Barack, "Black hole scattering near the transition to plunge: Self-force and resummation of post-Minkowskian theory", Phys. Rev. D 110, 044039 (2024), arXiv:2406.08363 [gr-qc] [link]
Frequency-domain self-force calculations using Gegenbauer reconstruction
In this paper we explore the use of the Gegenbauer re-projection technique for time-domain reconstruction in frequency-domain self-force calculations. This approach promises significant improvements over the conventional "EHS" approach to self-force calculations for hyperbolic and highly-eccentric elliptical orbits.
Citation: C. Whittall, L. Barack and O. Long, "Frequency-domain self-force calculations using Gegenbauer reconstruction", arXiv:2509.19439 [gr-qc] [link]
talks
Frequency domain approach to self-force in hyperbolic scattering
Online talk given to the 24th Capra meeting on Radiation Reaction in General Relativity.
Self-force in hyperbolic scattering: a frequency-domain approach
Talk given to the 25th Capra meeting on Radiation Reaction in General Relativity.
Self-force in hyperbolic scattering: a frequency-domain approach
Online talk given to the 23rd International Conference on GR and Gravitation.
Self-force in hyperbolic scattering: a frequency-domain approach
Talk given to the 26th Capra meeting on Radiation Reaction in General Relativity.
Self-force in hyperbolic black hole scattering
Seminar given as a satellite session to the conference Asymmetric Binaries meet Fundamental Astro-physics.
Black hole scattering: the self-force approach
Talk given to the 9th QCD meets Gravity meeting.
Self-force in black hole scattering: a scalar-field toy model
Talk given to the GSF and Scattering Amplitudes Workshop.
Black hole scattering: the self-force approach
Journal club seminar.
Self-force scattering in the strong and weak field
Talk given to the 27th Capra meeting on Radiation Reaction in General Relativity.
Black hole scattering near the transition to plunge: self-force and the resummation of post-Minkowskian theory
Talk given to the 25th BritGrav meeting.
Frequency-domain self-force scatter calculations using the Gegenbauer procedure
Talk given to the joint GR24 and Amaldi16 conference.
Frequency-domain self-force calculations using Gegenbauer reconstruction
Talk given to the 28th Capra meeting on Radiation Reaction in General Relativity.
Numerical approaches to self-force calculations along scatter orbits
Talk given to the 2nd Annual GSF and Amplitudes Workshop