During the experiment, 30,000 cesium atoms became trapped in a crossing pattern of infrared laser beams. This optical lattice holds the atoms fast, like eggs in a crate, while gently shaking them.

Cesium copper chloride is a prime example. Its magnetic copper atoms reside on a triangular lattice and seek to align themselves antiparallel to each other. In a triangle, this does not work, however.

Boston College physicists have discovered a complex landscape of electronic states that can co-exist on a kagome lattice, resembling those in high-temperature superconductors, they reported this fall ...