Igor Klebanov

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Igor R. Klebanov
Alma materMassachusetts Institute of Technology (BS)
Princeton University (PhD)
Known forAdS/CFT correspondence, Klebanov-Strassler solution, Higher-spin theory
Scientific career
FieldsTheoretical physics
String theory
Doctoral advisorCurtis Callan
Doctoral studentsSteven Gubser
Websitewww.princeton.edu/physics/research/high-energy-theory/

Igor R. Klebanov (born 1962) is an American theoretical physicist. Since 1989, he has been a faculty member at Princeton University, where he is currently a Eugene Higgins Professor of Physics and the director of the Princeton Center for Theoretical Science.[1] In 2016, he was elected to the National Academy of Sciences.[2] Since 2022, he is the director of the Simons Collaboration on Confinement and QCD Strings.[3]

Klebanov received his undergraduate education at the Massachusetts Institute of Technology, class of 1982, and his Ph.D. degree at Princeton University in 1986 as a student of Curtis Callan. In his thesis he made advances in the Skyrme model of hadrons, which included the first paper on a Skyrmion crystal.[4] Klebanov worked as a post-doc in the SLAC Theory Group. His main contributions to string theory are in matrix model approaches to two-dimensional strings, in brane dynamics, and in the gauge theory-gravity duality. His work in 1996-97 on relations between branes in supergravity and their gauge theory description[5] anticipated the gauge theory-gravity correspondence.

Klebanov's 1998 paper[6] with his graduate student Steven Gubser, and Alexander M. Polyakov, which made a precise statement of the AdS/CFT duality, is among the top cited papers in theoretical high-energy physics. A series of papers by Klebanov and collaborators on D-branes on the conifold has led to discovery[7] of cascading gauge theory. Its dual warped throat provides a geometric description of color confinement and chiral symmetry breaking; it has been used in model building for cosmology and particle physics. The relation between 3-dimensional critical O(N) model and bosonic higher-spin gauge theory in 4-dimensional AdS space[8] has been called the Klebanov-Polyakov correspondence.

Klebanov's more recent work includes the Entanglement Entropy in confining gauge theories,[9] the F-theorem for Renormalization Group flows,[10] large N tensor models,[11] field theory descriptions of critical phenomena, and quantum many-body scars as group invariant states.[12]

Honors

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Works

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  • hep-th/9108019 "String Theory in Two Dimensions", High Energy Physics - Theory (hep-th) Igor R. Klebanov, 26 Aug 1991
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  • "Some stringy aspects of the AdS/CFT duality", Strings 2002, Igor Klebanov
  • Solving Quantum Field Theories via Curved Spacetimes, Physics Today, Igor Klebanov and Juan Maldacena
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References

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