CoScaLi IX - Workshop on Collective Scattering of Light
September 13 - 18, 2026 | Porquerolles - France

The role of coherences between atomic dipoles has gained an ever-increasing importance with the advent of ultracold atoms and large trapped ion systems. These allow to generate and manipulate correlations and entanglement between the particles, with many consequences for both applications (e.g., quantum information) and for the study of fundamental properties of matter. Light is the most important and versatile tool to manipulate matter in a controlled way, allowing today to address and manipulate single emitters and their respective coherences.

This workshop addresses the properties of these many-body systems at the frontier between the microscopic and macroscopic realms. The coupling between light and an ensemble of classical or quantum scatterers, and the induced classical and quantum correlations, will be intensively discussed through lectures and informal discussions. The main topics of interest are listed below:

• Cooperative scattering

• Anderson localization of light

• Dicke super and subradiance

• Mesoscopic physics with cold atoms

• Multiple scattering of light

• Ab initio models for light scattering

• Collective optical forces

Organizers

• Romain Bachelard - Federal University of São Carlos, Brazil

• Robin Kaiser - INPHYNI, University of Côte d'Azur, Nice, France 

• Dalila Rivero Jerez - Universidade de São Paulo, Brazil

Invited speakers

• Philippe Courteille, University of São Paulo, Brazil

• Igor Ferrier-Barbut, Institut d'Optique/CNRS, France

• Claudiu Genes, TU Darmstadt, Germany

• Antoine Glicenstein, Univ. de Bordeaux/CNRS, France

• Mathilde Hugbart, Univ. Côte d'Azur/CNRS, France

• Hsiang-Hua Jen, Academia Sinica, Taiwan

• Thorsten Peters, TU Darmstadt, Germany

• Felipe Pinheiro, Univ. Federal of Rio de Janeiro, Brazil

• Nicola Piovella, Univ. degli Studi di Milano, Italy

• Thomas Pohl, Vienna Univ. of Technology, Austria

• Arno Rauschenbeutel, Humboldt-Universität zu Berlin, Germany

• Ana Maria Rey, JILA/Univ. of Colorado, USA

• Francis Robicheaux, Purdue University, USA

• Johannes Schachenmayer, Univ. de Strasbourg/CNRS, France

• Sergey Skipetrov, LPMMC/CNRS, France

• Raul C. Teixeira, Federal Univ. of São Carlos, Brazil

• James K. Thompson, JILA/Univ. of Colorado, USA 

• Jean-Baptiste Trebbia, Univ. of Bordeaux/CNRS, France

• Alexey Yamilov, Missouri Univ. of Sci. and Tech., USA

• Joachim von Zanthier, University Erlangen-Nürnberg, Germany

Contributed talks

• Matheus Aleluia, University of São Paulo, Brazil

• Simon Bernon, LP2N/IOGS, Univ. de Bordeaux, France

• Nathan Bonvalet, Institut d’Optique, Palaiseau, France

• Giovanni Ferioli, LENS, Florence, Italy

• Gustavo França, University of São Paulo, Brazil

• William Guerin, Univ. Côte d'Azur/CNRS, France

• Yiwen Han, Univ. de Strasbourg/CNRS, France

• Ivor Krešić, TU Wien, Austria

• Lukáš Lachman, Palacký Univ. Olomouc, Czech Republic

• Rassaert Laszlo, Ecole Normale Supérieure de Lyon, France

• Sébastien Lucas, LPMMC/CNRS, France

• Christian Miniatura, Univ. Côte d'Azur/CNRS, France

• Kelsey O'Donnell, Strathclyde Univ., United Kingdom

• Yannis Pargoire, LPL, Univ. Sorbonne, France

• Pedro Rosario, Federal Univ. of São Carlos, Brazil

• Neven Šantić, Institute of Physics, Zagreb, Croatia

• João Vitor dos Santos Ferreira, Federal Univ. of São Carlos, Brazil

• Tanja Schoger, Lab. Kastler Brossel, Sorbonne Univ., France

• Vojtěch Švarc, Palacký Univ. Olomouc, Czech Republic

• Guillaume Tremblier, Institut d’Optique, Palaiseau, France

• András Vukics, Wigner Research Centre for Physics, Budapest, Hungary

Participation

If you would like to participate and possibly present your work as a contributed talk, please send an email with title+abstract to romain@ufscar.br until the 01/05/2026.

There is no registration fee for the workshop. The accomodation will be provided by the organization, at the IGESA center.

Program

A preliminary version of the program will be announced later.

Venue

• The island of Porquerolles can only be reached by boat from La Tour Fondue or Toulon. A bus leaving from Nice airport (terminal 2) and going at Tour Fondue (haven) on Sunday 13th of October afternoon (precise time to be announced later) will be provided by the workshop organization. A return bus on Friday 18th will be organized as well.

• Regarding the ferry from Tour Fondue to Porquerolles island, please find the timetable on the following link. 

• The workshop will be held at the IGESA center. The accommodation in the IGESA structure will be proposed to the participants.