Active matter and collective effects

Wether dilute or condensed, active matter inherits very unusual properties from the intrinsic out of equilibrium nature of its components. Mechanical pressure is not a state variable, surface tension is not unique, macroscopic flows emerge in the absence of driving, collective actuation spontaneously takes place in solids.

Swimmers, Walkers, Surfers

Self-Propulsion of Pure Water Droplets by Spontaneous Marangoni-Stress-Driven Motion, Izri, Z., van der Linden, M. N., Michelin, S. & Dauchot, O. Phys. Rev. Lett. 113, 248302 (2014).
Dynamics of a Self-Propelled Particle in a Harmonic Trap, Dauchot, O. and Démery, V. Phys. Rev. Lett. 122, 068002 (2019).
Non-Hamiltonian features of a classical pilot-wave dynamics, M. Labousse and S. Perrard, PRE 90 (2), 022913 (2014)

Collective dynamics of active fluids

Collective Motion of Vibrated Polar Disks, Deseigne, J., Dauchot, O. and Chaté, H. PRL 105, 098001 (2010).
Emergence of macroscopic directed motion in populations of motile colloids, Bricard, A., Caussin, J.-B., Desreumaux, N., Dauchot, O. and Bartolo, D. Nature 503, 95–98 (2013).
Interrupted Motility Induced Phase Separation in Aligning Active Colloids, M. N. Van der Linden, L. C. Alexander, D. G. A. L. Aarts, and O. Dauchot, Phys. Rev. Lett. 123, 098001 (2019).

Towards active solids

Spontaneously Flowing Crystal of Self-Propelled Particles, Briand, G., Schindler, M. and Dauchot, O. PRL 120, 208001 (2018).

Theory of Active Matter

Polar active liquids: a universal classification rooted in non conservation of momentum, Nguyen Thu Lam, K.-D., Schindler, M. and Dauchot, O., J. Stat. Mech. 2015, P10017 (2015).
Coupling spin to velocity: collective motion of Hamiltonian polar particles, Bore, S. L., Schindler, M., Nguyen Thu Lam, K.-D., Bertin, E. M. and Dauchot, O. J. Stat. Mech. 2016, 033305 (2016).
Self-propulsion and crossing statistics under random initial conditions, M Hubert, M Labousse, S Perrard, PRE 95 (6), 062607 (2017).

Path memory dynamics of walking drops

Self-organization into quantized eigenstates of a classical wave-driven particle, S. Perrard, M. Labousse, M. Miskin, E. Fort, Y. Couder. Nat. Comm, 5, (2014).
Build-up of macroscopic eigenstates in a memory-based constrained system, M. Labousse, S. Perrard, Y. Couder, E. Fort. New Journal of Physics, 16 (11), 113027 (2014).
Multi-stable free states of an active particle from a coherent memory dynamics, V. Bacot, S. Perrard, M. Labousse, Y. Couder, E. Fort, PRL 122, 104303 (2019).

Coupling between active and passive materials

Active versus Passive Hard Disks against a Membrane: Mechanical Pressure and Instability, Junot, G., Briand, G., Ledesma-Alonso, R. & Dauchot, O. Phys. Rev. Lett. (2017).

Glassy systems

Experimental Evidence of the Gardner Phase in a Granular Glass, A. Seguin and O. Dauchot, PRL 117, 228001–5 (2016).

Olivier DAUCHOT | webpage | Google Scholar |
Matthieu LABOUSSE | webpage | Google Scholar |
Teresa LOPEZ-LEON | webpage | Google Scholar |
Mathilde REYSSAT | webpage | Google Scholar |
Michael SCHINDLER | webpage | Google Scholar |