Scientists discover predictable light dispersion behaviour inside paint.

Inside a drop of paint, light is scattered so often that it seems impossible to demonstrate quantum effects. But despite the thousands of possible paths the light can take, like a drunk person inside a labyrinth, researchers now show that there are just two exits.Depending on the light pattern that enters the paint, two photons always come out through the same exit, or through different ones – as though they avoid each other. The scientists of University of Twente's MESA+ Institute for Nanotechnology publish about these remarkable findings in the Physical Review A journal.