Looking for a bulk point in general geometries

by Prof. Simon Caron-Huot (McGill)

Wednesday 28 May 2025, 16:30 → 17:30 Europe/Berlin

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In a spacetime with asymptotically anti-de-Sitter boundaries, localized bulk events produce characteristic signals at boundary locations lightlike-separated from the event. We describe (thought) experiments that use boundary wavepackets to amplify these signals, providing a simple method to read off the bulk geometry and scattering amplitudes around any optically accessible bulk point.  We also discuss new signatures of bulk causality on boundary correlation functions.