All humans who have ever lived were once each an individual cell, which then divided countless times to produce a body made up of about 10 trillion cells. These cells have busy lives, executing all ...

Systems of motile interacting units (active matter) exhibit fascinating emergent phenomena such as self-organization and directed motion at large scales. Familiar examples are flocks of birds, schools ...

Physicists are using small wheeled robots to better understand these indirect mechanical interactions, how they play a role in active matter, and how we can control them. When self-propelling objects ...

In its original form, Gibbs-Boltzmann statistical mechanics cannot describe “active matter,” such as living, driven, or self-propelled systems. Contemporary models of swarming and flocking behaviors, ...