Igor Klebanov

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Igor R. Klebanov is a theoretical physicist whose research is centered on relations between string theory and quantum field theory. Born in Russia, he emigrated to the U.S. as a teenager. He received his undergraduate education at MIT, and his Ph.D. degree at Princeton University as a student of Curtis Callan in 1986. In his thesis he made advances in the Skyrme model of hadrons. Klebanov worked as a post-doc at SLAC. Since 1989 he has been a Professor at Princeton University. His main contributions to string theory are in Matrix model approaches to two-dimensional strings, in brane dynamics, and more recently in the gauge theory-gravity duality. His work in 1996-97 on relations between branes in supergravity and their gauge theory description anticipated the AdS/CFT correspondence. His 1998 paper Gauge Theory Correlators from Non-Critical String Theory with Gubser and Polyakov, which made a precise statement of the correspondence, is among the all-time top cited papers in high-energy physics. A series of papers by Klebanov and collaborators on D-branes on the conifold has led to discovery of cascading gauge theory; its string theoretic dual provides a geometric description of color confinement and chiral symmetry breaking.