CPT

Calendar of Physics Talks Vienna

Hawking Radiation After Scrambling Time
Speaker:Pei-Ming Ho (National Taiwan University)
Abstract:We investigate the effects of the generalized uncertainty principle (GUP) on Hawking radiation in a quantum field theory. Our calculations demonstrate that the GUP leads to a suppression of Hawking radiation near the scrambling time. This finding challenges the conventional understanding of Hawking radiation's robustness and is consistent with the nice-slice argument. We discuss the implications of these results for the black hole information paradox and the nature of quantum gravity.
Date: Tue, 29.10.2024
Time: 14:00
Duration: 60 min
Location:Erwin-Schroedinger-Hoersaal, 1090 Vienna, Boltzmanngasse 5, 5th floor
Contact:S. Fredenhagen, H. Steinacker, M. Sperling

Factorization restoration through Glauber gluons, Part 2
Speaker:Matthias Neubert (University of Mainz)
Abstract:I will discuss new insights into the low-energy dynamics of gap-between-jets cross sections at hadron colliders, for which phase factors in the hard amplitudes spoil collinear cancellations and lead to double (“super- leading”) logarithmic behavior. Based on a method-of-regions analysis, we have identified three-loop contributions from perturbative active-active Glauber-gluon exchanges with the right structure to render the cross section consistent with PDF factorization below the gap veto scale. These Glauber contributions are unambiguously defined without regulators beyond dimensional regularization.
Date: Tue, 29.10.2024
Time: 16:15
Duration: 60 min
Location:Erwin-Schroedinger-HS, Boltzmanngasse 5, 1090 Wien, 5.Stock
Contact:A. Hoang, M. Procura