You see, when you fragment foton to two parts, every part has diferent spin ( lets say rotation ) than the other. So if first part has left rotation, then the second part has right rotation.
Great thing is, that the change is done immediately, even when you move one part for example to the Proxima Centauri and the other part is on Earth, the change will be still instant.
Amazing, isnt it?
Well we have new way of comunication... or not?
By the Einsteins Theory of Relativity, no information ( not atom or particle ) cant travel faster than light.
Problem is, that this way of "comunication" cant be used, just because of the quantum theory. L