Speaker
Description
We revisit and study quantum corrections to the supersymmetric
entropy of BPS black holes in 4d N=2 supergravity, which can be obtained
from Type IIA string theory compactified on a Calabi–Yau threefold.
Macroscopically, these corrections arise from an infinite series of
higher-derivative F-terms that encode modifications to the
two-derivative supergravity effective action. They result from
integrating out the tower of light D0-branes in the large volume patch.
We analyze the most general black hole configuration with D0–D2–D4–D6
charges and find that this setup can receive non-perturbative
corrections. We interpret these corrections as arising from virtual
particle pair production. We characterize the quantum effects by
providing both a semi-classical description and a precise one-loop
evaluation. We show that, despite the presence of non-trivial
corrections, the stability of the system remains intact. As a byproduct,
we uncover a correspondence among virtual pair production of the states
in the lightest UV tower, classical confinement in the black hole throat
and non-perturbative corrections to the Wald entropy.
