Events Daily

Friday, December 15, 2023

New Physics Near Black Holes
Raphael Bousso, UC Berkeley
Event Type: Informal HEP Talk
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Information located in an entanglement island in semiclassical gravity can be nonperturbatively reconstructed from distant radiation, implying a radical breakdown of effective field theory. We show that this occurs well outside of the black hole stretched horizon. We compute the island associated to large angular momentum Hawking modes of a four-dimensional Schwarzschild black hole. These modes typically fall back into the black hole but can be extracted to infinity by relativistic strings or, more abstractly, by asymptotic boundary operators constructed using the timelike tube theorem. Remarkably, we find that their island can protrude a distance parametrically larger than the Planck scale and icomparable to the Bohr radius for supermassive black holes. Therefore, in principle, a distant observer can determine experimentally whether the black hole information paradox is resolved by complementarity, or by a firewall.

Link to the Event Video

NYU Physics Holiday Party
Event Type: NYU Physics Holiday Party
Time: 3:00 PM - 5:00 PM
Location: 726 Broadway, 10th Floor