About

After a successful start of this new conference series in 2024 in Reykjavík, Iceland, we now welcome you to our second event! The second international conference on Physics of Excitons and Polaritons in Semiconductors (PEPS) will now take place in Paris Saclay between 6th – 10th July 2026 where we also celebrate the 20th anniversary on the discovery of polariton condensation! PEPS is a brand new biennial conference series focused on bringing together experts, early career researchers, students and young minds working on quantum light-matter technologies and the optics of semiconductors. The foundation of this new colloquium is built upon strong light-matter effects in optical cavities, advances in exciton-polariton physics, macroscopic quantum phenomena, and polarization- and spin-transport physics in nanostructures.

We especially welcome early career researchers and Ph.D. students to come and present their research.

Special anniversary symposium

2026 marks 20 years since the verification of Bose-Einstein condensation of exciton-polaritons in microcavities by Kasprzak et al. at elevated temperatures, marking the start of a research field which has since then published hundreds of articles on the subject. Non-equilibrium condensation of polaritons is now a well established phenomena across a multitude of material platforms and photonic cavity structures permitting researchers to probe non-Hermitian quantum dynamics, vortices, solitons, spin transport, scaling laws, spontaneous order, synchronization and pattern formation, superfluidity, supersolidity, and more. Please join us on Wednesday 8th of July to a special morning symposion dedicated to the physics of Bose-Einstein condensates and polaritons with talks from many of the original thinkers in the field. The session will cover the important progress for the past 20 years wrapping up with an outlook towards the future of polaritonic technologies.