INTERNATIONAL CONFERENCE ON

Physics of Excitons and Polaritons in Semiconductors

PEPS

6th – 10th July 2026

ENS Paris-Saclay, France

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.

Topics of PEPS 2026 involve but are not limited to:

  • Excitons and polaritons in
    • Perovskites
    • Emerging two-dimensional materials
    • Organic materials
  • Excitons in molecules, colloidal nanocrystals, and quantum dots and wires
  • Topological photonics and polaritonics
  • Advances in plasmon- and phonon-polariton physics
  • Light-matter physics in photonic crystals, metamaterials, and waveguides
  • Bose-Einstein condensation of excitons and polaritons
  • Macroscopic quantum phenomena and many-body physics of excitons and polaritons
  • Nonlinear and transient dynamics of exciton and polariton quantum fluids
  • Quantum optics of excitons and polaritons
  • Optomechanics and polaromechanics
  • Unconventional, quantum, and neuromorphic computing with polaritons
  • Spinoptronics and polarization transport
  • Advances in synthesis and fabrication of photonic nanostructures and optical materials
PEPS 2024

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 symposium dedicated to the physics of polaritons and their Bose-Einstein condensation 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.

Conference Venue

The conference will take place in the Grand Amphithéâtre Alain Aspect (500 seats) at the ENS Paris-Saclay campus.

University Paris-Saclay is a prominent French public research university located in the southern suburbs of Paris. Its history stretches as far back as 12th century Université de Paris, and in 2019 it saw its latest transformation where it combined several technical grandes écoles, as well as several technological institutes, engineering schools, and research facilities. Today, University Paris-Saclay brings together a cluster of prestigious institutions including research organizations like CNRS, CEA, and INRAE, and universities. Known for being a leading center for higher education and research in Europe, with a strong emphasis on science, innovation, and global collaboration it is frequently ranked among the top universities in the world, especially in mathematics and physics such as Academic Ranking of World Universities (ARWU).

Venue address:
École normale supérieure Paris-Saclay
4, avenue des Sciences
91190 Gif-sur-Yvette

How to get to the Paris-Saclay campus from Paris:

1 – Through Massy Palaiseau station (RER B or RER C trains): ENS Paris Saclay is directly connected to Massy Palaiseau Station via bus 4606. Then Massy Palaiseau is directly connected to Paris via trains RER B or RER C. The choice of trains depends on where one wants to go within Paris, but in general RER B is the most central / fastest option.

2 – Through Le Guichet station (RER B train): ENS Paris Saclay is directly connected to le Guichet RER B train station via bus 4609. Again RER B has direct trains to Paris center.

We recommend that people plan their trips using the website https://www.iledefrance-mobilites.fr/

More information on how to get there

Accommodation:

The conference is not partnered with any hotels at the moment. We can however recommend a range of nearby hotels.
Hôtel Campanile Prime – Paris Saclay
B&B Hotels
MyResidHome
Hôtel d’Orsay
Adagio ApartHotel
Novotel Paris Saclay

Confirmed invited speakers

Ataç İmamoğlu

ETH Zürich

Benoît Deveaud

École Polytechnique Fédérale de Lausanne

Anna Minguzzi

CNRS/Université Grenoble-Alpes

Vinod Menon

The City College of New York

Monique Combescot

Sorbonne Université

Angela Vasanelli

Université Paris Diderot

Anna Monika Seiler

ETH Zürich

Elena Rozas Jimenez

TU Dortmund

Iacopo Carusotto

Pitaevskii BEC Center, INO-CNR, Trento, Italy

Jacek Szczytko

University of Warsaw

Sebastian Klembt

University of Würzburg

Alexander Kuznetsov

Paul Drude Institute

Rui Su

Nanyang Technological University

Carole Diederichs

Ecole Normale Supérieure de Paris

Giacomo Scalari

ETH Zürich

Alberto Bramati

Sorbonne Université

Martin Vacha

Institute of Science Tokyo

Gabriele Raino

ETH Zürich

Michele Rota

Sapienza University of Rome

Loïc Lanco

Paris Diderot University

Dario Ballarini

CNR Nanotec Lecce

Camille Lagoin

CRHEA, CNRS

Sven Höfling

University of Würzburg

Hai Son Nguyen

École Centrale de Lyon

Guillaume Malpuech

CNRS, Institut Pascal

Claude Weisbuch

CNRS, Ecole polytechnique

Ivan Favero

CNRS, Université Paris Cité

Organising committee

Sylvain Ravets

CHAIR

University Paris-Saclay

Helgi Sigurðsson

ORGANISER
University of Warsaw

Jacqueline Bloch

ORGANISER

University Paris-Saclay

Alexandre Le Boité

ORGANISER

Université Paris Cité

Jean-Sébastien Lauret

ORGANISER

University Paris-Saclay

Important dates

  • 1st of January 2026: Abstract submission opens
  • 1st of February: Registration opens
  • 15th of April 22nd of April: Abstract submission closes (extended)
  • 1st of May 18th of May: Notification of acceptance
  • 1st of June: Early bird registration closes
  • 1st of July: Registration closes
  • 6th of July: Conference opening
  • 10th of July: Conference closing

Registration

We ask that participants register through the dedicated CNRS Azur Colloque platform:
https://dr04.azur-colloque.fr/inscription/fr

The registration fee includes full access to the conference; conference bag; coffee breaks; lunches; excursion; and gala dinner.

  • Early bird registration: 600 €
  • Regular registration: 750 €

There are three types of contributions towards the conference program. You can find more information on abstract submission here.

  • Invited talk (25+5 minutes)
  • Contributed talk (15+5 minutes) and a poster (optional) summarizing the talk.
  • Poster contribution

Conference program

Program committee

Alex Fainstein – Centro Atómico Bariloche and Instituto Balseiro
Zhanghai Chen – Xiamen University
Alexandra Boltasseva – Purdue University
Maxime Richard – Majulab, CNRS, National University of Singapore
Vinod Menon – City College of New York
François Dubin – Université Côte d’Azur, CNRS
Hai Son Nguyen – Ecole Centrale de Lyon
Sven Höfling – University of Würzburg
Daniele Sanvitto – CNR Nanotec Lecce
Jérôme Faist – ETH Zürich
Barbara Piętka – University of Warsaw
Marzena Szymańska – University College London
Mete Atatüre – University of Cambridge

Doris Reiter – TU Dortmund University