Active Matter: the synergy between Maths and Physics, Paris

26 mai 2025, 09:00 → 13 juin 2025, 21:00 Europe/Paris

Institut Henri Poincaré

Financial support requests are now closed.

REGISTRATION FOR THE FIRST WEEK AND THE FOCUSED DISCUSSIONS ARE NOW CLOSED

REGISTRATION FOR THE WORKSHOP IS MANDATORY BUT FREE

Organisers: Leonid Berlyand, Carles Blanch-Mercader, Eric Clement, Anke Lindner

Scientific Committee

• Laetitia Giraldi (INRIA Sophia-Antipolis, France)
  
• Jean-François Joanny (Collège de France)
• Raphaël Voituriez (Laboratorie Jean Perrin) 

Thematic 3-weeks programme at the Institut Henri Poincaré, Paris, May 26 to June 13, 2025. 

Week  1 - minicourses for students,

Week 2 - international conference

Week 3 - focused discussion groups

 

1st Location. May 26 to 28 & June 10 to 13: new IHP Perrin building.

2nd Location. June 2 to 6. Conference: Borel building, IHP: 

Beware: It was reported to us that scammers are sending to participants fraudulent e-mails about accommodation/fees. Please be particularly cautious about e-mails not coming from the organisers nor from an @ihp.fr address. 

Presentation of the programme

This program will bring lectures for graduate students and young researchers from May 26 to May 28, an international conference on the program's topic from June 2 to 6, and discussions in small focused groups (TBA) for the week of June 10 to June 13. This program will bring together physicists and applied mathematicians, promising a reciprocal benefit to both fields. Specifically, new minimal models can be developed by incorporating experimental data, and novel mathematical tools can be created to address the current challenges that are unique to active matter.

Three minicourses for students: Introduction to mathematics and physics of active matter.
May 26 to 28, IHP, Perrin building

The lectures will consist of three sessions, each lasting 1 hour and 30 minutes. The topic of the mini-courses will be on mathematical and experimental approaches to studying active matter. These lectures will be primarily aimed at graduate students and young researchers. The list of lectures is:

 

Lecturer	Title	Time
Leonid Berlyand, Pennsylvania State University	TBA	TBA
Eric Clement, PMMH-ESPCI, Sorbonne Université	TBA	TBA
Ignacio Pagonabarraga Mora, Universitat Barcelona	TBA	TBA

Beware: The 29th and the 30th of May are national holidays in France. 

Conference Week: June 2 to 6, IHP, Borel Building

List of confirmed speakers:

Adar, Ram Technion	Appert-Rolland, Cécile Université Paris-Saclay	Bechinger, Clemens University of Konstanz
Wan, Kirsty University of Exeter	Carrillo, José Antonio University of Oxford	Chaté, Hugues CEA-Saclay
Weiss, Mathias Universität Bayreuth	Duerinckx, Mitia Université Libre de Bruxelles	Fauci, Lisa Tulane University
Figueroa Morales, Nuris University of Colorado Boulder	Hoffmann, Franca Caltech	Laux, Tim Regensburg University
Liu, Yanan,  Northwest University	Marciniak-Czochra, Anna Heidelberg University	Mellet, Antoine University of Maryland
Meunier, Nicolas  LaMME	Morozov, Alexander University of Edinburgh	Ohm, Laurel University of Wisconsin-Madison
Volpe, Giovanni University of Gothenburg	Perthame, Benoit Sorbonne Université	Peruani, Fernando CY Cergy Paris Université
Recho, Pierre Université Grenoble Alpes	Safsten, Alex University of Maryland	Secchi, Eleonora ETH Zurich
Soto, Rodrigo Universidad de Chile	Taute, Katja Leipzig University	Tang, Min Shanghai Jiao Tong University
Tournus, Magali Institut Mathématique de Marseille	Vlahovska, Petia Northwestern University

 

Focused discussions: Challenges in modeling active matter.
June 10 to 13, IHP, Perrin building

Discussion in small and focused groups on the topics of the programme will be organised. 

The preliminary list of topics for scientific group discussions:

• Stability and bifurcations in active matter
• Coarse-grained descriptions of active suspensions

Back to the main scientific event

Sponsors

Poster PC-2 TaMPhys.pdf

lundi 26 mai ¶

09:30 → 10:30 Lecture: TBA¶

Orateur: Eric Clement (PMMH-ESPCI)

10:30 → 11:00 Coffee break

11:00 → 12:00 Lecture: TBA¶

Orateur: Leonid Berlyand (Penn State University, USA)

12:00 → 14:00 Lunch break

14:00 → 15:00 Special event: Order in Biological Development¶

This event is not part of the thematic programme "Active Matter: the synergy between Maths and Physics". We encourage graduate student and postdocs to attend it

Lecturer: Mark Bowick
Affiliation: KAVLI INSTITUTE FOR THEORETICAL PHYSICS, UNIVERSITY OF CALIFORNIA SANTA BARBARA

It will take place at Assemblée du Collège de France
Seminar Room: amphithéâtre Mireille Delmas-Marty (salle 5).
Adress: Place Marcelin-Berthelot, 75231 Paris cedex 05
Organised by: Prof. Jean-François JOANNY.

15:30 → 16:30 Lecture: TBA¶

Orateur: Ignasi Pagonabarraga (Dept. Condensed Matter Physics, University of Barcelona)

mardi 27 mai ¶

09:30 → 10:30 Lecture: TBA¶

Orateur: Ignasi Pagonabarraga (Dept. Condensed Matter Physics, University of Barcelona)

10:30 → 11:00 Coffee break

11:00 → 12:00 Lecture: TBA¶

Orateur: Prof. Eric Clement (PMMH-ESPCI)

12:00 → 14:00 Lunch break

14:00 → 15:00 Lecture: TBA¶

Orateur: Leonid Berlyand (Penn State University, USA)

15:30 → 17:30 Pique-Nique

mercredi 28 mai ¶

09:30 → 10:30 Lecture: TBA¶

Orateur: Leonid Berlyand (Penn State University, USA)

10:30 → 11:00 Coffee break

11:00 → 12:00 Lecture: TBA¶

Orateur: Ignasi Pagonabarraga (Dept. Condensed Matter Physics, University of Barcelona)

12:00 → 14:00 Lunch break

14:00 → 15:00 Lecture: TBA¶

Orateur: Eric Clement (PMMH-ESPCI)

jeudi 29 mai ¶

09:00 → 17:00 Ascension Day

lundi 2 juin ¶

09:00 → 09:30 Registration¶

09:30 → 09:40 Welcome from Institut Henri Poincaré¶

Orateur: Dominique Mouhanna (IHP)

09:40 → 10:20 Two active matter models using an immersed boundary framework: self-avoidant droplets and single-point swimmers.¶

Orateur: Lisa Fauci (Tulane University)

10:20 → 10:50 Coffee break

10:50 → 11:30 Transport and self-organization in living fluids¶

Orateur: Matthias Weiss (Experimental Physics I, University of Bayreuth, Germany)

11:30 → 12:10 Directing active flows¶

Orateur: Petia Vlahovska (Northwestern University)

12:10 → 14:00 Lunch break

14:00 → 15:20 Poster Session 1¶

15:20 → 15:50 Coffee break

15:50 → 16:30 The effect of internal state in Chemotaxis and Phototaxis¶

Orateur: Min Tang (Shanghai Jiao Tong University)

16:30 → 17:10 Mathematical analysis and numerical simulations on Models of Cell Motility¶

Orateur: Nicolas Meunier (Lamme Université dEvry)

mardi 3 juin ¶

09:00 → 09:40 Condensation and Synchronization in Aligning Chiral Active Matter¶

Orateur: Prof. Hugues Chaté (CEA-Saclay)

09:40 → 10:20 A Soft Matter Perspective on Biofilm Assemblies: From Structure to Rheology¶

Orateur: Eleonora Secchi (ETH Zurich)

10:20 → 10:50 Coffee break + Group Photo

10:50 → 11:30 Swimming in suspensions: from pattern formation to stability¶

Orateur: Laurel Ohm (University of Wisconsin - Madison)

11:30 → 12:10 Aggregation-Diffusion Phenomena: From microscopic models to free boundary problems¶

Orateur: Antoine Mellet (University of Maryland)

12:10 → 14:00 Lunch break

14:00 → 15:20 Poster Session 2¶

15:20 → 15:50 Coffee break

15:50 → 16:30 Kinetic theory methods applied to active matter¶

Orateur: Rodrigo Soto (Universidad de Chile)

16:30 → 17:10 Mirror Langevin diffusion for sampling a non log-concave measure supported on a bounded domain¶

Orateur: Magali Tournus (Institut Mathématique de Marseille)

mercredi 4 juin ¶

09:00 → 09:40 Mechanochemical Feedbacks and Symmetry Breaking: A New Model for Pattern Formation in Hydra Regeneration¶

Orateur: Prof. Anna Marciniak-Czochra (Heidelberg University)

09:40 → 10:20 Brownian particles in non-equilibrium baths¶

Orateur: Prof. Clemens Bechinger (University of Konstanz)

10:20 → 10:50 Coffee break

10:50 → 11:30 Initiation of motility on a compliant substrate¶

Orateur: Pierre Recho (CNRS, UGA)

11:30 → 12:10 Nonlinear stability and non-self adjointness in a free boundary model of cell motion¶

Orateur: Alex Safsten (University of Maryland)

12:10 → 14:00 Lunch break

14:00 → 14:40 Modelling of dense crowds with Mean-Field Games¶

Orateur: Cecile Appert-Rolland (IJCLab - CNRS - Univ. Paris-Saclay)

14:40 → 15:20 Bacterial chemotaxis in complex environments¶

Orateur: Katja Taute (Leipzig University)

jeudi 5 juin ¶

09:00 → 09:40 Cell-cell Adhesion micro-and macroscopic models via Aggregation-Diffusion systems¶

Orateur: Jose Antonio Carrillo (University of Oxford)

09:40 → 10:20 TBA¶

Orateur: Prof. Giovanni Volpe (University of Gothenburg)

10:20 → 10:50 Coffee break

10:50 → 11:30 Environment-stored memory in active matter: a framework for extra-cellular matrix remodeling¶

Orateur: Ram Adar (Technion - Israel Institute of Technology)

11:30 → 12:10 Mean settling speed and Batchelor's formula for particle suspensions¶

Orateur: Mitia Duerinckx (Université Libre de Bruxelles)

12:10 → 14:00 Lunch break

14:00 → 15:20 Poster Session 3¶

15:20 → 15:50 Coffee break

15:50 → 16:30 Analysis of equations for living tissues and free boundary problems¶

Orateur: Benoit Perthame (Sorbonne Universite)

16:30 → 17:10 Active bacterial transport in complex media¶

Orateur: Nuris Figueroa (University of Colorado Boulder)

18:00 → 21:00 Conference Dinner

vendredi 6 juin ¶

09:00 → 09:40 Hidden behavioural complexity in the navigation patterns of single-celled eukaryotes¶

Orateur: Kirsty Wan (University of Exeter)

09:40 → 10:20 Stochastic kinetic theory of dilute microswimmer suspensions¶

Orateur: Alexander Morozov (University of Edinburgh)

10:20 → 10:50 Coffee break

10:50 → 11:30 Change of bifurcation type in 2D free boundary model with nonlinear diffusion¶

Orateur: Tim Laux (University of Regensburg)

11:30 → 12:10 Self-focusing of swimming bacteria in flowing nematic order¶

Orateur: Yanan LIU (Northwest University)

12:10 → 14:00 Lunch break

14:00 → 14:40 TBA¶

Orateur: Franca Hoffmann (California Institute of Technology)

14:40 → 15:20 Statistical Mechanics of Intelligent Active Matter: Optimal Transport, Synchronization, and Criticality in Bacteria and Sheep Herds¶

Orateur: Prof. Fernando Peruani (CY Cergy Paris Université)

lundi 9 juin ¶

09:00 → 17:00 Whit Monday