48 citations · 127 across the 9 of their papers we have counts for
10 papers
Immobility of isolated swarmer cells due to local liquid depletion
Ajesh Jose, Benjamin Perez-Estay, Shira Omer Bendori +4
Bacterial swarming is a complex phenomenon in which thousands of self-propelled rod-shaped cells move coherently on surfaces, providing an excellent example of active matter. Howev…
Topological defects in multi-layered swarming bacteria
Victor Yashunsky, Daniel J. G. Pearce, Gil Ariel +1
Topological defects, which are singular points in a director field, play a major role in shaping active systems. Here, we experimentally study topological defects and the flow patt…
Detecting and characterizing phase transitions in active matter using entropy
Benjamin Sorkin, Avraham Be'er, Haim Diamant +1
A major challenge in the study of active matter lies in quantitative characterization of phases and transitions between them. We show how the entropy of a collection of active obje…
Physical characteristics of mixed-species swarming colonies
Ajesh Jose, Gil Ariel, Avraham Be'er
In nature, bacterial collectives typically consist of multiple species, which are interacting both biochemically and physically. Nonetheless, past studies on the physical propertie…
Biophysics underlying the swarm to biofilm transition
Vasco M. Worlitzer, Ajesh Jose, Ilana Grinberg +5
Bacteria organize in a variety of collective states, from swarming, which has been attributed to rapid surface exploration, to biofilms, which are highly dense immobile communities…
Turbulence-induced clustering in compressible active fluids
Vasco M. Worlitzer, Gil Ariel, Avraham Be'er +3
We study a novel phase of active polar fluids, which is characterized by the continuous creation and destruction of dense clusters due to self-sustained turbulence. This state aris…
Motility-Induced Clustering and Meso-Scale Turbulence in Active Polar Fluids
Vasco M. Worlitzer, Gil Ariel, Avraham Be'er +3
Meso-scale turbulence was originally observed experimentally in various suspensions of swimming bacteria, as well as in the collective motion of active colloids. The corresponding…
Heterogeneous bacterial swarms with mixed lengths
Shlomit Peled, Shawn D. Ryan, Sebastian Heidenreich +3
Heterogeneous systems of active matter exhibit a range of complex emergent dynamical patterns. In particular, it is difficult to predict the properties of the mixed system based on…
A phase diagram for bacterial swarming
Avraham Be`er, Bella Ilkanaiv, Renan Gross +4
Bacterial swarming is a rapid mass-migration, in which thousands of cells spread collectively to colonize a surface. Physically, swarming is a natural example of active particles t…
Swarm Hunting and Clusters Turning Inside Out in Chemically Communicating Active Mixtures
Jens Grauer, Hartmut Löwen, Avraham Be'er +1
A large variety of microorganisms produce molecules to communicate via complex signaling mechanisms such as quorum sensing and chemotaxis. The biological diversity is enormous, but…