Physicists have managed to tie a quantum knot for the first time

An international team of scientists has managed to create a quantum knot for the first time - a fundamental breakthrough in quantum physics that could one day help power the supercomputers of the future. These knots aren't quite the same as the ones you might tie to moor a boat to a jetty - they've been made in a superfluid form of quantum matter called Bose-Einstein Condensate, or BEC, and are more like smoke rings than traditional knots.
Read more: http://snapzu.com/kxh/physicists-have-managed-to-tie-a-quantum-knot-for-the-first-time