The black hole has been a subject of very active research in string theory. Since the work of Strominger and Vafa in 1996, which successfully reproduced the Bekenstein-Hawking entropy of a certain black hole in string theory, there has been a lot of work trying to understand the physical nature of the microstates underlying black holes. By such endeavors, it was found that some microstates are represented by smooth, horizonless geometries in classical supergravity, called "microstate geometries". It is not yet clear how many out of all microstates are represented by microstate geometries but, as our understanding of black hole microphysics improves, a rapidly increasing number of microstate geometries are being constructed. Furthermore, as the generality of microstate geometries becomes better appreciated in recent years, they have become studied in broader research areas in broader contexts, such as holography, stability of solutions, and entanglement entropy.
This molecular workshop aims to invite domestic as well as international researchers working in the frontiers of microstate geometries and related areas to review the current status of the relevant research fields, and provide a stimulating environment so that the participants can have active discussions and start new collaborations that clarify the black hole microphysics.