MORE than a century after its birth, quantum theory is as perplexing as ever, and recent lab results have only underscored just how strange it is. No one is better qualified to describe the weirdness than University of Vienna physicist Anton Zeilinger, director of the Austrian lab where many of these experiments were done.
We now know, for example, that quantum entanglement – dismissed by Einstein as “spooky action at a distance” – is real; a quantum system can indeed be in two states at the same time. Physicists can also transfer information from one quantum system to another, a…
