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Explore quantum criticality phenomena in black hole scattering through this 59-minute seminar from the Institute for Advanced Study's High Energy Theory series. Delve into how black hole perturbation theory captures crucial effects in binary merger dynamics, including tidal deformations, ringdown mode decay, and photon ring physics, while examining the longstanding challenges in extracting qualitative results for robust predictions. Discover a newly identified critical phenomenon in Kerr black hole perturbation theory, where the system exhibits a critical point at zero black hole temperature that governs a broad finite-temperature regime dominated by critical perturbations. Learn how this quantum many-body system-like behavior is characterized by critical exponents that lead to universal, robust predictions unique to Kerr geometry, addressing the theoretical needs driven by remarkable experimental advances in gravitational wave detection and black hole imaging over the past decade.
