18th Jul 2012

Teleportation in Time

One of the spookiest phenomenon of the quantum world is entanglement, where two particles can become so deeply linked that they share the same fate—the behaviour of one immediately influences the other, even if they’re separated in space. Quantum entanglement has helped create uncrackable codes, build ultrafast computers and transmit huge amounts of information using only a few atoms—and now, Jay Olson and Timothy Ralph at the University of Queensland, Australia, have mathematically described how entanglement could bind particles not only through space, but also through time. It isn’t yes clear how it can be tested, but it’s a strangely intuitive conclusion. The idea originated from a simplified view of the universe, consisting of one dimension of space (x-axis) and one dimension of time (t-axis), where there are points of symmetry in the past and future, and for a quantum “message” to be sent, the particle must be symmetric in time. For this reason, the process is called “teleportation in time.” Olson says that “it’s not time travel as you would ordinarily think of it, where it’s like, poof! you’re in the future—but you get to skip the intervening time.”

Read Olson and Ralph’s original paper

(Source: Flickr / darrentunnicliff)

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