Diamond shows promise for a quantum Internet


Entangled diamonds...

The team led by R. Hanson at TU-Delft report in Nature (Bernien, H. et al. Nature http://dx.doi.org/10.1038/nature12016 (2013)) that they have entangled information kept in pieces of diamond 3 metres apart, so that measuring the state of one quantum bit (qubit) instantly fixes the state of the other - a step necessary for exchanging quantum information over large distances.