3 papers
gr-qc2026
Ringdown waves from hairy black holes
Ariadna Uxue Palomino Ylla, Kosuke Makino, Akane Tanaka +2
We study how quasinormal-mode frequencies may encode information about the effective matter source responsible for black-hole hair. Using the established eikonal correspondence bet…
hep-th2025
Self-gravitating strings and quantum effects in two-dimensional gravity
Akihiro Ishibashi, Yoshinori Matsuo, Akane Tanaka
It is expected that when the string coupling is taken to be sufficiently small, a black hole turns into a bound state of self-gravitating fundamental strings. This state would be d…
hep-th2024
Quantum focusing conjecture in two-dimensional evaporating black holes
Akihiro Ishibashi, Yoshinori Matsuo, Akane Tanaka
We consider the quantum focusing conjecture (QFC) for two-dimensional evaporating black holes. The QFC is closely related to the behavior of the generalized entropy -- the sum of t…