He earned his PhD in mathematics from the University of Bonn under the supervision of Don Zagier and subsequently held postdoctoral positions at the International Centre for Theoretical Physics (ICTP) in Trieste, the Max Planck Institute for Mathematics in Bonn, and ETH Zurich. In 2022, he joined the CNRS as a research fellow at the Paul Painlevé Laboratory at the University of Lille.

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He completed his PhD at the Perimeter Institute for Theoretical Physics and held postdoctoral positions at Stony Brook University and the Institute for Advanced Study in Princeton. In 2023, he became a permanent researcher at the Institut de Physique Théorique of CEA-Saclay.

Dalimil’s research has focused on developing a precise mathematical understanding of conformal field theory (CFT) in general dimensions, building on the conformal bootstrap program. He introduced the method of analytic functionals to derive sharp bounds on scaling exponents in CFTs. He subsequently uncovered a precise mapping between these functionals and the solution of the sphere packing problem in dimensions 8 and 24. More recently, he has applied ideas from the conformal bootstrap to establish nearly sharp bounds on spectral gaps of hyperbolic manifolds and new subconvex bounds on L-functions. His central research goal is to use these mathematical insights to advance the foundations of quantum field theory.

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After studying at Xi’an Jiaotong University, he earned his PhD from the University of California, Berkeley under the supervision of Maciej Zworski.

As part of the Choose France for Science program, Zhongkai Tao, Assistant Professor of Mathematics, receives funding from the French government, administered by the National Research Agency (ANR) under the France 2030 initiative, reference “ANRS-25-CFFS-0012”.

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A graduate of MIT, he completed his PhD at Columbia University before conducting postdoctoral research at Harvard. He then held a position as an NSF/Veblen Research Instructor at Princeton and the Institute for Advanced Study.

At IHES, Semon Rezchikov hopes to further explore the consequences of his previous work on cyclotomic structures in symplectic topology. He also wishes to return to his earlier research on the Fueter equation.

He was trained at the Indian Institute of Science Education and Research in Kolkata, earned his doctorate at the University of California in San Diego, and subsequently held a position as a Founder’s Circle Member at the Institute for Advanced Study in Princeton. He then became a Sherman Fairchild Postdoctoral Scholar Research Associate at the California Institute of Technology.

Sridip Pal has already established several collaborations with researchers in the Paris region, including Dalimil Mazáč (IPht, CEA-Saclay), Balt C. van Rees (CPhT, École polytechnique) and Slava Rychkov (IHES).

A specialist in harmonic analysis, Hong Wang recently announced a solution to the three-dimensional Kakeya conjecture, a longstanding open problem at the intersection of analysis and geometry.

Originally from Guangxi, China, Hong Wang earned her undergraduate degree in mathematics from Peking University in 2011. She then moved to France, where she graduated from École Polytechnique (Cycle Ingénieur polytechnicien, X2010) and obtained a master’s degree in mathematics at Université Paris-Saclay in 2014. During her PhD at MIT, completed in 2019 under the supervision of Larry Guth, she began working on problems in Fourier analysis. Following a postdoctoral position at the Institute for Advanced Study in Princeton, she became Assistant Professor at UCLA in 2021, before joining the Courant Institute in 2023.

In 2022, Hong Wang was awarded the Maryam Mirzakhani New Frontiers Prize for “advances on the restriction conjecture, the local smoothing conjecture, and related problems.” More recently, Hong Wang and her co-author Joshua Zahl distinguished themselves by announcing the solution to the three-dimensional Kakeya conjecture, a longstanding open problem at the intersection of harmonic analysis and geometry.

Takeshi Saito studied at the University of Tokyo under Kazuya Kato and received his doctorate in 1989. He began his career at the University of Tokyo as an assistant in 1987, was promoted to lecturer in 1990, assistant professor in 1992, and full professor in 1999.

Among his most influential works are a series of articles with Kazuya Kato on the Bloch conductor formula and ramification theory of varieties over perfect or local fields and a series of articles with Ahmed Abbes on ramification groups of local fields. His research on ramification theory culminated in 2017 with a milestone article establishing an algebraic theory of characteristic cycles in positive characteristic.

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Videos:

• Upper Ramification Groups of Local Fields with Imperfect Residue Fields : lecture 1 – lecture 2 – lecture 3
• Micro Support of a Constructible Sheaf in Mixed Characteristic
• Characteristic Cycle of an \ell-adic Sheaf

Julio Parra-Martinez is a theoretical physicist working on many topics, including quantum field theory, scattering amplitudes, gravitation, effective field theories and string theory.

In recent years he has focused on importing techniques from particle physics to the realm of classical general relativity. These techniques, which were originally developed to compute the quantum probabilities of scattering events at particle colliders, have found surprising applications to gravitational-wave and black-hole physics.

Originally from Spain, Julio Parra-Martinez did his undergraduate at the University of Valencia, and his graduate studies in the UK and USA, obtaining a MASt in Applied Mathematics from the University of Cambridge in 2015, and a PhD in Physics from the University of California Los Angeles (UCLA) in 2020. After getting his PhD, he spent three years as a Sherman Fairchild Prize Postdoctoral Fellow at the California Institute of Technology (Caltech), and one year as an Assistant Professor at the University of British Columbia, in Vancouver, Canada, before he joined IHES in 2024.

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After having received his Ph.D. in physics from UCLA and held postdoctoral positions at the University of Cambridge, Princeton University, and Caltech, Eric Perlmutter became a permanent researcher in the String Theory Group of the Institut de Physique Theorique (IPhT), CEA Saclay.

His current work focuses on aspects of conformal field theories with many degrees of freedom, the symmetries thereof, and what they imply about the existence of simple theories of gravity. This involves ideas from the spectral theory of the modular group, as well as generalizations of random matrix universality realized by conformal field theories. One overarching goal of this research is to give a microscopic accounting of the chaotic dynamics of black holes.

Clément Delcamp was born in France and completed his undergraduate studies here. Thanks to the support of a Walter-Zellidja fellowship from the French Academy, he moved to the UK in 2013 for his graduate studies, where he obtained a MSc in Quantum Fields and Fundamental Forces from Imperial College of London.

After graduating in 2018 from the Perimeter Institute for Theoretical Physics and the University of Waterloo, he joined for three years the Max Planck Institute of Quantum Optics in Munich as a postdoc, followed by one year at the Max Planck Institute for the Physics of Complex Systems in Dresden.

In 2022, Clément Delcamp was awarded a postdoctoral fellowship from the Research Foundation – Flanders to join Ghent University. In 2023, he joined IHES a Junior Professor of Physics. Since February 2025, he is a CNRS Researcher at the Institute.

Personal webpage: https://www.clementdelcamp.com/

Dustin Clausen did his undergraduate studies at Harvard university, and obtained his PhD in 2013 from MIT, working on Arithmetic Duality in Algebraic K-theory, under the supervision of Jacob Lurie. He then spent five years as a postdoc in Copenhagen, followed by two years in Bonn, first as a postdoc at the University of Bonn, and then as a research group leader at the Max Planck Institute for Mathematics. He moved back to Denmark in 2020 to work as an associate professor at the University of Copenhagen.

Dustin Clausen is Principal Investigator of the Simons Collaboration on Perfection in Algebra, Geometry, and Topology.