I, too, am no physicist -- but from what I can discern from the article, they're using the light (presumably, the quanta - or photon) to change the polarity (th

I, too, am no physicist -- but from what I can discern from the article, they're using the light (presumably, the quanta - or photon) to change the polarity (the light, here, acting as the magnetizer/demagnetizer via spin). This would, in theory, remove the limitations of signaling via copper or the like, which produces the limiting speeds of current RAM implementations.