Clément Hongler

2014 Regional Award Winner — Post-Doc

Clément Hongler

Current Position:
Assistant Professor

École Polytechnique Fédérale de Lausanne (Previously at Columbia University)

Applied Mathematics

Recognized for: Studies of phase transitions in two-dimensional Ising model

Areas of Research Interest and Expertise: Mathematical Physics, Statistical Mechanics, Probability, Complex Analysis, Quantum Field Theory

Clement Hongler


PhD, Mathematics, Université de Genève
MSc, Mathematics, École Polytechnique Fédérale de Lausanne (EPFL)

Clément Hongler obtained his B.Sc. (2006) and M.Sc. in mathematics (2008) from the Swiss Federal Institute of Technology of Lausanne (EPFL), supported by an Excellence Scholarship. He obtained his Ph.D. from the University of Geneva in 2010, under the supervision of Stanislav Smirnov, the 2010 Fields Medalist. From 2010 to 2014 Hongler was a Ritt Assistant Professor and a Minerva Fellow at the Department of Mathematics at Columbia University, supported by an NSF grant since 2011. Since 2014 he is an Assistant Professor at EPFL, where he leads the Chair of Statistical Field Theory in the Mathematics Department.

Dr. Hongler's research is in mathematical physics, at the intersection of statistical mechanics, probability, complex analysis and quantum field theory. He focuses on the mathematical structures that arise in the large scale limits of lattice models, in particular the Ising model. In this field, he has contributed to proving several classical conjectures coming from the mathematical and physical literature and to developing new tools to study such structures.

"Fascinating structures emerge from the collective interactions of simple random objects. These structures are incredibly rich, universal, and consistent. My goal is to understand mathematically their nature and origin and to find interesting applications."

Key Publications:

  1. Chelkak D, Hongler C, Izyurov K. Conformal invariance of spin correlations in the planar Ising model. Princeton University Annals of Mathematics. 2014
  2. Hongler C, Smirnov S. The energy density in the planar Ising model.  Acta Mathematica. December 2013
  3. Hongler C, Kytölä K. Ising interfaces and free boundary conditions.  J. Amer. Math. Soc. 26. 2013
  4. Hugo Duminil-Copin, Clément Hongler, Pierre Nolin. Connection probabilities and RSW-type bounds for the two-dimensional FK Ising model. Communications on Pure and Applied Mathematics. Volume 64, Issue 9, pages 1165–1198. September 2011

Other Honors:

2011–2014 NSF Grant DMS-1106588 “Conformally invariant statistical mechanical models”

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