Seminar

Firewalls as artefacts of inconsistent truncations of quantum geometries

By
Cristiano Germani (Munich University)
Date
Place
Aula 507
seminar ICCUB
In this talk I will argue that: a) firewalls inexorably appear at the Page time under the assumption that semiclassical black holes are unitarized by perturbative effects of order e^{-S}, where S is the entropy of the system; b) firewalls do not appear when semiclassical black holes are non-perturbatively unitarized. I will then show that a) is simply a manifestation of an inconsistent truncation of non-perturbative effects that unitarize the semiclassical black hole. Thus, I will conclude that the appearance of firewalls is just a signal of the breaking of the semiclassical approximation at the Page time, even for large black holes.
NOTES

Note unusual time