Ultra-cold atoms gliding along edges/ around obstacles enable super-efficient, lossless energy/ data transmission

https://news.mit.edu/2024/ultracold-atoms-edge-state-0906

"cloud of about 1 million sodium atoms in corralled spin in laser-controlled trap at nano-kelvin temperature, crawling over microns in milliseconds, essentially forever, like marbles circling a bowl but without friction or slowing down, along edge of exotic material... flowing only in 1 direction along ring of laser light forming circular wall (edge-state)... analog for studying how 2D confined electrons under magnetic field exhibit Quantum Hall effect, but since atoms are larger, researchers were able to image"