'Littlest Hadron Collider' at Work (VIDEO) University of Otago This video is under embargo. Please login to access this video. Caption Physicists from New Zealands' University of Otago have pushed the frontiers of quantum technology by developing a steerable 'optical tweezers' unit that uses intense laser beams to precisely split a cloud of ultracold rubidium atoms in two and then collide the halves together at a pedestrian pace. Credit Niels Kjaergaard Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.