So, scientists from Harvard and MIT, by experimenting with photons, have successfully bonded two photons together. The exploit that had been thought impossible (or only theoretically possible) is very probably the beginning of a miraculous breakthrough in sciences. Ever heard of light sabers? That’s basically it. They very probably crated a new state of mater. But how did they manage to do such a thing? The principles behind these discoveries are really not simple. In an easier way, the team of scientist fired two photons through a cloud of atomic rubidium gas close to the absolute zero.