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2026-2027 / PHYS1987-1

Active ingredient

Duration

30h Th

Number of credits

 Master in physics, research focus4 crédits 
 Master in physics, teaching focus (Réinscription uniquement, pas de nouvelle inscription)4 crédits 
 Master in physics, professional focus in medical radiophysics4 crédits 
 Master of education, Section 4: Physics5 crédits 

Lecturer

Eric Opsomer, Nicolas Vandewalle

Coordinator

Eric Opsomer

Language(s) of instruction

French language

Organisation and examination

Teaching in the second semester

Schedule

Schedule online

Units courses prerequisite and corequisite

Prerequisite or corequisite units are presented within each program

Learning unit contents

This course provides an introduction to the fundamental concepts and recent developments in active matter, a field at the interface of statistical physics, soft matter, and non-equilibrium physics. It combines descriptive presentations, theoretical approaches, and the study of experimental systems.

The main topics covered include: the different classes of active matter and their order parameters; active Brownian motion and models of self-propelled particles; collective phenomena and order-disorder transitions; the Vicsek model and polar active systems; motility-induced phase separation (MIPS); active nematic and chiral systems; non-reciprocal interactions; as well as self-organization, collective behavior, and stigmergy.

The concepts are illustrated by numerous examples drawn from biological, colloidal, granular, and robotic systems.

Learning outcomes of the learning unit

The main objective of the course is to provide students with the concepts and tools needed to understand the physics of active matter, a rapidly growing field since the early 2000s.

By the end of the course, students will be able to:

  • distinguish the main classes of active systems and identify their order parameters;
  • explain how active systems differ from systems at thermodynamic equilibrium;
  • understand and use the main theoretical models of active matter;
  • identify and describe the physical mechanisms underlying collective phenomena such as alignment, motility-induced phase separation (MIPS), self-organization, and structure formation;
  • qualitatively and quantitatively analyze experimental or numerical results related to active systems;
  • establish connections between concepts from non-equilibrium statistical physics and the behavior of biological, synthetic, or robotic active systems.

Prerequisite knowledge and skills

Soft Matter

Statistical Physics

Planned learning activities and teaching methods

Lectures, course materials provided.

Mode of delivery (face to face, distance learning, hybrid learning)

Face-to-face course

Course materials and recommended or required readings

Platform(s) used for course materials:
- eCampus


Further information:

Slides on eCampus.

Paper version of a textbook. 

Exam(s) in session

Any session

- In-person

written exam ( open-ended questions )

Work placement(s)

Organisational remarks and main changes to the course

Contacts

Nicolas Vandewalle, Professeur Ordinaire
nvandewalle@uliege.be

Eric Opsomer, Chef de Travaux
eric.opsomer@uliege.be

 

Association of one or more MOOCs