Bertrand Evrard – Correlated Electrons in van der Waals Heterostructures

Bertrand Evrard is a CNRS research scientist and joined the NQMag team in November 2025. There, he conducts research on many-body systems and their quantum properties. As an experimentalist, his main tool is optical spectroscopy, and his preferred devices are two-dimensional materials and their heterostructures.

Bertrand Evrard first develloped an interest in cold atomic gases during his PhD at the Collège de France, under the supervision of Jean Dalibard and Fabrice Gerbier (2016–2020). He then became familiar with other experimental platforms during two postdoctoral fellowships. At ETH Zurich, pump–probe spectroscopy of van der Waals heterostructures led him to study Fermi polarons and their interactions (2021–2024). At the MPQ laboratory, he worked in the field of quantum optomechanics, contributing to the observation of the vibrational  ground state of a microdisk (2024–2025). In parallel with this experimental activities, Bertrand Evrard conducted theoretical studies on out-of-equilibrium many-body systems, focusing in particular on the concept of quantum scars (2021–2025).