講座內容：Self-organization is often observed in active matter systems such ascell colonies, developing tissue, insect swarms, bird flocks, and groups ofautonomous robots. Its emergence influid-like systems of self-propelled agents with aligning interactions has beenthe focus of intense research. In this talk, I will introduce an alternativeactive matter model in which interactions are position-based and have noexplicitly aligning component. In this model, an elasticity-based mechanismdrives the agents to self-organize by selecting lower-energy collective modes.Given its simplicity, this mechanism could play a relevant role in a variety ofnatural and artificial active systems.