Hirosi Ooguri, Ph.D.
California Institute of Technology![Portrait photo of Hirosi Ooguri](https://simonsfoundation.imgix.net/wp-content/uploads/2017/07/12031424/Ooguri_014-125px.jpg?auto=format&w=120&h=120&fit=crop&crop=faces&q=90)
Hirosi Ooguri is a mathematical physicist and string theorist of exceptional creativity and breadth. His work on Calabi-Yau manifolds has yielded important new insights into the D-brane structures crucial to string theory, while his work on the relationship of supersymmetric gauge theories to string theory and to gravity has fostered the rapid development of the AdS/CFT correspondence, which relates quantum properties of gauge theories to solutions of higher-dimensional classical field equations in the presence of black holes and curved space-time. He is perhaps best known for his innovations in the use of topological string theory to compute Feynman diagrams in superstring models.