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  Adaptive Phototaxis of a Swarm of Mobile Robots using Positive and Negative Feedback Self-Alignment

  In this paper, we explore how robots in a swarm can individually exploit collisions to produce self-organizing behaviours at the macroscopic scale. We propose to focus on two behaviours that modify the orientation of a robot during a collision, (...)

  
  
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  Contactless Rheology of Soft Gels Over a Broad Frequency Range

  We report contactless measurements of the viscoelastic rheological properties of soft gels. The experiments are performed using a colloidal-probe atomic force microscope in a liquid environment and in dynamic mode. The mechanical response is (...)

  
  
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  Lessons from Biomass Valorization for Improving Plastic-Recycling Enzymes

  Synthetic polymers such as plastics exhibit numerous advantageous properties that have made them essential components of our daily lives, with plastic production doubling every 15 years. The relatively low cost of petroleum-based polymers (...)

  
  
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  Programming Directed Motion with DNA-Grafted Particles

  Colloidal particles can be programmed to interact in complex ways by functionalizing them with DNA oligonucleotides. Adding DNA strand-displacement reactions to the system allows these interparticle interactions to respond to specific changes (...)

  
  
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  Hydrodynamic superradiance in wave-mediated cooperative tunneling

  Superradiance occurs in quantum optics when the emission rate of photons from multiple atoms is enhanced by inter-atom interactions. When the distance between two atoms is comparable to the emission wavelength, the atoms become entangled and (...)

  
  
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  Martingale-induced local invariance in progressive quenching

  Progressive quenching (PQ) is a stochastic process during which one fixes, one after another, the degrees of freedom of a globally coupled Ising spin system while letting it thermalize through a heat bath. It has previously been shown that (...)

  
  
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  Lessons from Biomass Valorization for Improving Plastic-Recycling Enzymes

  Synthetic polymers such as plastics exhibit numerous advantageous properties that have made them essential components of our daily lives, with plastic production doubling every 15 years. The relatively low cost of petroleum-based polymers (...)

  
  
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  Mean arc theorem for exploring domains with randomly distributed arbitrary closed trajectories

  A remarkable result from integral geometry is Cauchy’s formula, which relates the mean path length of ballistic trajectories randomly crossing a convex 2D domain, to the ratio between the region area and its perimeter. This theorem has been (...)

  
  
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  Branching processes with resetting as a model for cell division

  We study the stochastic thermodynamics of cell growth and division using a theoretical framework based on branching processes with resetting. Cell division may be split into two sub-processes: branching, by which a given cell gives birth to an (...)

  
  

• Kinetic Monte Carlo Algorithms for Active Matter Systems

  Juliane U. Klamser, Olivier Dauchot, and Julien Tailleur Phys. Rev. Lett. 127, 150602 10.1103/PhysRevLett.127.150602 We study kinetic Monte Carlo (KMC) descriptions of active particles. We show that, when they rely on purely persistent, active (...)

  
  

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