At the center, where the beams intersect, the atoms move sluggishly, as if trapped in a thick liquid — an effect the researchers who invented it described as “optical molasses.”

在光束相交的中心，原子移动缓慢， 就像被困在浓稠的液体中一样— —发明它的研究人员将这种效应描述为“ 光学糖蜜” 。