PIRSA:26040139

Video URL

https://pirsa.org/26040139

Ringing of Rapidly Rotating Black Holes in Higher-derivative Gravity

Maenaut, S. (2026). Ringing of Rapidly Rotating Black Holes in Higher-derivative Gravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/26040139

Maenaut, Simon. Ringing of Rapidly Rotating Black Holes in Higher-derivative Gravity. Perimeter Institute for Theoretical Physics, Apr. 30, 2026, https://pirsa.org/26040139 

          @misc{ scivideos_PIRSA:26040139,
            doi = {10.48660/26040139},
            url = {https://pirsa.org/26040139},
            author = {Maenaut, Simon},
            keywords = {Strong Gravity},
            language = {en},
            title = {Ringing of Rapidly Rotating Black Holes in Higher-derivative Gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2026},
            month = {apr},
            note = {PIRSA:26040139 see, \url{https://scivideos.org/pirsa/26040139}}
          }

Simon Maenaut University of Copenhagen

Talk numberPIRSA:26040139
DOI10.48660/26040139
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Within the Effective Field Theory approach to gravity, deviations from General Relativity can be systematically described by higher-curvature operators. However, computing the resulting corrections to black hole quasinormal mode spectra remains challenging in the rapidly rotating regime, where perturbative expansions in the spin break down. Making use of recently constructed numerical rotating black hole solutions, we computed scalar quasinormal mode frequency shifts at leading order for scalar Gauss-Bonnet, dynamical Chern-Simons and Cubic Riemann corrections. We employed a pseudo-spectral collocation method to solve the perturbation equations on these backgrounds, enabling accurate computation across a broad parameter range. We observed that corrections to certain modes grow significantly as the spin approaches the near-extremal regime.