On this workshop
Black holes exist everywhere in the universe, and their classical aspects are relatively well understood today with the development of observational technology. However, its quantum aspect is not yet fully understood. For example, the Bekenstein-Hawking entropy can be explained by counting up the number of states for supersymmetric black holes through gauge/gravity duality, but for ordinary black holes, the counting problem is still unsolved. How information lost in a black hole is recovered from Hawking radiation is also an unsolved problem, and how the physical laws inside a black hole horizon should be described is also an unsolved problem.
In this workshop, we will focus on these fundamental problems in quantum gravity through gauge/gravity duality and quantum information, and discuss the prospects for the future, while returning to the problems from a fundamental aspect and understanding recent developments. We will also discuss the quantum theory of de Sitter spacetime, since, like black holes, de Sitter spacetime with cosmological horizons also has many unsolved problems, some of which are common to black holes.
