Date: July 22, 2026
Time: 17:00-18:15
Place: 理学部E棟1階E101室
Speaker: Wei-Hsiang Shao (RIKEN iTHEMS)
Title: Does Hawking Radiation Survive Beyond the Scrambling Time?
Abstract:
It is widely assumed that the standard Hawking radiation persists as long as a black hole remains much larger than the Planck length. In this talk, I will explore how UV physics can nevertheless dramatically modify the conventional properties of Hawking radiation, even in this semiclassical regime.
In particular, I will show that nonlocal UV features expected in quantum gravity (and especially in string theory) can render Hawking radiation a transient phenomenon that is largely suppressed after the scrambling time, much earlier than the conventionally expected black hole lifetime. This suggests a major departure from the usual picture of black hole evaporation and may offer fresh insight into alternative resolutions of the information paradox.