Black holes, in particular near horizon regions, are theoretically important playgrounds where stringy effects may appear.In these regions, Hawking radiation is expected to occur, and possible corrections to the radiation have long been studied.
However, as long as black holes are macroscopically large, such stringy effects have been regarded as extremely small.
Recently, a new perspective has been proposed.
While the corrections to the radiation spectrum are indeed small, it has been suggested that significant corrections could appear in the time evolution of the radiation intensity.
As a result, the intensity of Hawking radiation may rapidly decay after the scrambling time, eventually leading to the termination of Hawking radiation.
Since this prediction arises from toy models motivated by the properties of string scattering amplitudes, it is desirable to derive it more directly from string theory.
In this talk, I would like to introduce our recent attempts and related works to approach this phenomenon, termination of Hawking radiation, by focusing on the emission time of wave packets or time-delay of string scattering amplitudes.
The meeting will start at noon.