Photons interact to form new photonic matter. Credit: Christine Daniloff/MIT
Photons interact to form new photonic matter. Physics short science news

When two beams of light intersect, the photons from the two sources ignore each other and pass by without any interaction occurring. However, under special conditions the photons could be forced to interact. This is exactly what a new study reports: photons from two light sources were made to interact and this event resulted in the formation of a new kind of photonic matter. The physicists observed groups of three photons interacting when a weak laser was shone through a dense concentration of ultracold rubidium atoms. Besides the fundamental scientific importance of the discovery, there are also practical applications such as the field of quantum computers.

Read the full story: MIT
Scientific publication: Science