Physicists irreversibly split photons by freezing them in a Bose-Einstein condensate

NOVEMBER 14, 2019 by¬†University of Bonn Light can be directed in different directions, usually also back the same way. Physicists from the University of Bonn and the University of Cologne have, however, succeeded in creating a new one-way street for light. They cool photons down to a Bose-Einstein condensate, which causes the light to collect […]