Revealing the deterministic components in active avalanche-like dynamics

Abstract

Avalanche dynamics in an ensemble of self-propelled camphor boats is studied. The self-propelled agents are camphor infused circular paper disks moving on the surface of water. The ensemble exhibits bursts...

Active chiral dynamics and boundary accumulation phenomenon in confined camphor particles

“…17,18 Moreover, elliptical Janus particles have demonstrated a remarkable phenomenon of giant negative mobility while traversing narrow two-dimensional channels bounded by reflective walls. 17 In particular, with respect to camphor active particles there are investigations related to collective behaviour, 19 synchronization, [20][21][22][23][24][25] and external forcing, 26 among other interesting studies.…”

How to capture active Marangoni surfers

“…The source of activity for these disks is the surface tension gradient 15,16 setup by diffusing camphor or pentanol molecules. [17][18][19][20] Such interfacial surfers have been used as a test bed to show a plethora of phenomena ranging from oscillation, 21 to synchronization, [22][23][24][25][26][27] path selections, 28 resonance, 29 and even power generation. 30 Since they are active agents, these objects have been used to demonstrate collective phenomena like clustering and swarming 31,32 as well.…”

Pathway selection by an active droplet

“…To mimic these environment-based movements at a centimeter scale, the self-propelled particles are ideal candidates. [18][19][20][21][22][23][24][25][26] In this work, we configured a tabletop experiment to observe the sensing motion of an active droplet in an asymmetrical environment. In the previous studies of liquid-on-liquid interfaces, a diverse set of collective phenomena has been obtained by the balance of attractive and repulsive forces.…”