スピーカー：宮地 真路 (名古屋大) 

タイトル：Probing Gravity using Correlation Measures

アブストラクト：
Recent progress in understanding connection between gravity and quantum
information enabled us to understand some non perturbative effects in
quantum gravity, so called island formula which resolved a version of
Hawking’s black hole information paradox. In this talk I will extend this
computation in two directions. First I will consider bi-partite correlation
measures in Hawking radiation and study its entanglement structure, by
proposing island formula for reflected entropy. Second, I will extend the
formula to entanglement entropy of matter field in general spacetime. We
found an island in imaginary time direction, and the entanglement entropy
of the matter cannot exceed the area of the island. I will also comment on
a closely related model on a gravity dual of boundary changing operator in
AdS/BCFT.