École Polytechnique - Homepage

Breakthrough in Physics: Demonstration of a Photonic time Crystal Yannis Laplace’s team at the Irradiated Solids Laboratory (LSI*) has just achieved a major breakthrough by demonstrating the operation of a “temporal photonic crystal.” This finding has been published in the journal *Nature*. This is a collaboration

Hong Wang, X 2010 and an École Polytechnique’s honorary doctorate recipient, is awarded the 2026 Fields Medal Chinese mathematician Hong Wang (Class of 2010 and recipient of an honorary doctorate from École Polytechnique) has been awarded the 2026 Fields Medal, the highest international honor in mathematics. Honored for her proof of Kakeya's conjecture in

A Closer Look at Kakeya's Conjecture Mathematician Hong Wang, X2010 and an Honorary Doctor of École Polytechnique, has just been awarded the Fields Medal in 2026 for her work on the Kakeya conjecture. Here is an overview of a problem whose origins date back more than a century.