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| Hiroshi Ooguri | |
|---|---|
| Name | Hiroshi Ooguri |
| Nationality | Japanese |
| Fields | Theoretical physics, Mathematical physics, String theory |
| Workplaces | University of Tokyo, California Institute of Technology, Institute for Advanced Study |
| Alma mater | University of Tokyo, Princeton University |
| Doctoral advisor | Edward Witten |
Hiroshi Ooguri is a Japanese theoretical physicist and mathematical physicist known for contributions to string theory, topological quantum field theory, and applications of algebraic geometry to problems in high-energy physics. His work connects ideas from supersymmetry, mirror symmetry, and quantum field theory to structures in knot theory, enumerative geometry, and black hole microstate counting. Ooguri has held positions at prominent institutions and collaborated widely with researchers across Europe, North America, and Asia.
Ooguri was born in Japan and pursued undergraduate studies at the University of Tokyo before moving to the United States for doctoral work at Princeton University. At Princeton he studied under Edward Witten and completed a dissertation that integrated techniques from conformal field theory, supersymmetric gauge theory, and differential geometry. During this period he interacted with contemporaries from institutions such as Harvard University, Massachusetts Institute of Technology, and the Institute for Advanced Study, building networks with researchers in mirror symmetry and string phenomenology.
After receiving his doctorate, Ooguri held postdoctoral and faculty positions at institutions including the California Institute of Technology and the Institute for Advanced Study. He later returned to Japan as a faculty member at the University of Tokyo, where he directed research groups bridging mathematics and physics. Ooguri has served as a visiting professor at centers such as the Kavli Institute for Theoretical Physics, the Max Planck Institute for Physics, and the Perimeter Institute for Theoretical Physics, linking seminars and programs on topological strings, AdS/CFT correspondence, and quantum gravity.
Ooguri's research spans foundational problems in string theory and rigorous constructions in mathematical physics. He co-developed formulations of topological string theory that clarified enumerative predictions of mirror symmetry and produced exact results for Gromov–Witten invariants and Donaldson–Thomas invariants. In work connecting knot theory to quantum field theory, he and collaborators elucidated relationships between Chern–Simons theory, knot invariants, and topological string amplitudes on noncompact Calabi–Yau manifolds.
Ooguri contributed to the program relating black hole microstate counting to topological string partition functions, providing checks of Bekenstein–Hawking entropy via D-brane bound state counting and moduli space integrals. His investigations of matrix models for nonperturbative effects informed studies of large N limit dualities such as the AdS/CFT correspondence between anti-de Sitter space and conformal field theory. He proposed techniques to compute protected quantities in supersymmetric gauge theory and analyzed wall-crossing phenomena in BPS state spectra, connecting to work by researchers at the Simons Center for Geometry and Physics and the Mathematical Sciences Research Institute.
Notable results include explicit constructions of D-brane configurations producing knot invariants, derivations of relations between Gopakumar–Vafa invariants and integer counts of BPS states, and formulations of open-closed dualities that linked Chern–Simons theory to topological string theory on resolved conifolds. His papers have been influential in shaping modern interactions between enumerative algebraic geometry, low-dimensional topology, and quantum field theory.
Ooguri has coauthored influential papers with figures such as Cumrun Vafa, H. Ooguri is forbidden as a link, so collaborators include Edward Witten, Cumrun Vafa, Marcos Mariño, Robbert Dijkgraaf, Andrew Strominger, Gopakumar, Kashani-Poor, and researchers from institutions like the California Institute of Technology, Harvard University, and the Institute for Advanced Study. He has mentored graduate students and postdoctoral researchers who have gone on to positions at places including the Princeton University, University of California, Berkeley, Stanford University, Yale University, and the RIKEN research cluster. Collaborative programs with groups at the Max Planck Institute for Mathematics, the IHES, and the Perimeter Institute produced workshops on topological strings, knot homology, and black hole microphysics.
Ooguri's recognitions include invitations to give talks at major conferences such as the International Congress of Mathematicians sessions on mathematical physics and plenary lectures at the Strings conference series. He has been awarded fellowships and prizes by institutions including the Japan Society for the Promotion of Science, the World Cultural Council, and national academies. Ooguri is a member or fellow of learned societies associated with the University of Tokyo and has held named visiting appointments at the Institute for Advanced Study and the Kavli Institute.
- Ooguri, H., Vafa, C., "Knot invariants and topological strings", linking Chern–Simons theory with topological string amplitudes on noncompact Calabi–Yau manifolds. - Ooguri, H., Strominger, A., Vafa, C., "Black hole attractors and the topological string", relating Bekenstein–Hawking entropy to topological partition functions and D-brane counting. - Ooguri, H., Vafa, C., "Geometry of N=2 strings", analyses connecting supersymmetric gauge theory moduli to string compactifications. - Ooguri, H., Mariño, M., "Matrix models and nonperturbative effects in topological strings", contributing to large N limit dualities and matrix model techniques. - Ooguri, H., Dijkgraaf, R., "Open-closed string duality and enumerative invariants", developments in Gromov–Witten theory and open string enumerative geometry.