Researchers led by the University of Pennsylvania have demonstrated for the first time that multiple information-carrying light signals can be safely guided through chip-based, reconfigurable networks using topology. This mathematical approach leverages the principle that topological properties remain stable even when objects are deformed.
Topology is the branch of mathematics that considers objects with the same fundamental structure as identical—famously equating donuts and mugs because both have one opening. This stability principle makes it particularly valuable for maintaining consistent performance in technological applications.