Zohar Komargodski

Zohar Komargodski
Name	Zohar Komargodski
Nationality	Israeli
Fields	Theoretical physics, Quantum Field Theory, Statistical Mechanics
Workplaces	Princeton University, Weizmann Institute of Science, Perimeter Institute
Alma mater	Tel Aviv University, Weizmann Institute of Science
Known for	Proof of the a-theorem in four dimensions, work on conformal field theory, anomalies, renormalization group
Awards	New Horizons in Physics Prize, Gribov Medal, Sackler Prize

Zohar Komargodski

Zohar Komargodski is an Israeli theoretical physicist known for contributions to quantum field theory, conformal field theory, and the renormalization group. He has worked on rigorous results concerning anomalies, scale versus conformal invariance, and the structure of infrared fixed points, collaborating with researchers across institutions such as Princeton University, Weizmann Institute of Science, and Perimeter Institute. His work connects to developments in high-energy physics, string theory, and condensed matter via relations to the c-theorem, a-theorem, and techniques from supersymmetry and holography.

Early life and education

Born in Israel, Komargodski completed undergraduate studies at Tel Aviv University, interacting with faculty associated with Tel Aviv University and research groups that included links to Weizmann Institute of Science members. He pursued graduate research at the Weizmann Institute of Science and defended a doctoral thesis under advisors active in fields related to Alexander Polyakov-inspired approaches and methods employed in studies connected to Edward Witten's influence on quantum field theory. During his formative years he was exposed to seminars and collaborations involving figures associated with Stanford University, Harvard University, and the Institute for Advanced Study.

Academic career

Komargodski held postdoctoral positions and visiting appointments at institutions including Perimeter Institute, Princeton University, and collaborations with groups at Massachusetts Institute of Technology, University of California, Berkeley, and Scuola Normale Superiore. He joined the faculty at the Weizmann Institute of Science and later accepted a position at Princeton University where he engaged with colleagues from departments linked to Institute for Advanced Study affiliates and networks spanning École Normale Supérieure and Cambridge University. His academic roles placed him in contact with researchers who have held positions at CERN, SLAC National Accelerator Laboratory, and Kavli Institute for Theoretical Physics.

Research contributions and notable results

Komargodski is best known for a proof of the four-dimensional a-theorem, building on concepts related to the two-dimensional Zamolodchikov c-theorem and work by John Cardy and Alvarez-Gaumé's discussions of anomalies. In collaboration with others, he developed arguments involving dilaton effective actions tied to the AdS/CFT correspondence explored by Juan Maldacena and methods resonant with techniques from Nima Arkani-Hamed-related effective field theory. His research clarified aspects of renormalization group flows influenced by earlier results from Ken Wilson and Kenneth G. Wilson's legacy, making connections to conformal bootstrap programs associated with Sasha Polyakov-like approaches and modern bootstrap efforts by groups around David Simmons-Duffin.

He produced results on constraints for conformal field theories (CFTs), operator product expansions analyzed in contexts akin to work by Alexander Belavin and Alexander Zamolodchikov, and on scale versus conformal invariance building on investigations by Hugh Osborn and Damian Galante. Komargodski's studies of anomalies and supersymmetric theories tied into literature involving Seiberg duality pioneered by Nathan Seiberg and aspects of Seiberg-Witten theory introduced by Nathan Seiberg and Edward Witten. His analyses influenced subsequent investigations in supersymmetric renormalization, holographic entanglement entropy approaches developed from Ryu Takayanagi formulations, and constraints on infrared dynamics relevant to works by Erik Verlinde and Gerard 't Hooft.

Komargodski also contributed to scattering amplitude methods and soft theorems connected to research by Freddy Cachazo and Andrew Strominger, and examined implications for thermalization and statistical properties resonant with studies from Alexander Polyakov and Leonard Susskind. His collaborations extended to researchers associated with Perimeter Institute and Institute for Advanced Study scholars addressing nonperturbative phenomena and dualities explored in mirror symmetry contexts and connections to Calabi–Yau compactifications investigated in string theory communities.

Awards and honors

Komargodski's work earned recognition including the New Horizons in Physics Prize and prizes such as the Gribov Medal and the Sackler Prize in Physics. He has been invited to deliver lectures at venues like International Congress of Mathematicians-adjacent workshops, confer with groups at CERN and Perimeter Institute, and participate in programmatic activities at KITP and IHES. His research has been cited in award citations associated with collaborative achievements in quantum field theory and mathematical physics.

Selected publications

- Komargodski, Z.; collaborators. Papers on the a-theorem and dilaton effective actions published in leading journals that follow lines of inquiry related to Physical Review Letters and Journal of High Energy Physics themes. - Works on scale vs. conformal invariance and constraints on CFT data that resonate with literature appearing in Communications in Mathematical Physics and proceedings of Strings Conference volumes. - Studies on anomalies, supersymmetric RG flows, and nonperturbative dynamics connected to collections of articles cited alongside research in Nuclear Physics B and reviews in Annual Review of Nuclear and Particle Science.

Personal life and outreach activities

Komargodski has participated in outreach and public lectures at institutions including Hebrew University of Jerusalem, Technion – Israel Institute of Technology, and public engagement events hosted by organizations like Perimeter Institute and Institute for Advanced Study outreach programs. He has mentored students and postdocs who have gone on to positions at universities such as Princeton University, Harvard University, Stanford University, and research centers including CERN and Perimeter Institute.

Category:Israeli physicists Category:Theoretical physicists Category:Living people