Skirting around ol' Wernie Heisenberg and that Principle of his, the team exploited quantum entanglement to read the encryption keys encoded in photon polarizations from their momentums, avoiding detection by either end -- in other words, doing what was once thought impossible by cryptographers.

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Not only that, but, also in principle, it could be done without resorting to the complexities of quantum entanglement.

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In a new paper published last week in Physical Review Letters, researchers at the Niels Bohr Institute have published a method that allows for much more stable quantum entanglement, which may help pave the way for better quantum communication and quantum computing.

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They also synchronized the clocks between the two information points using quantum entanglement.

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The state of one of these photons was inextricably linked with that of the other through a process known as quantum entanglement.

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The behavior could let communications and storage take advantage of quantum entanglement, where particles can affect each other despite relatively long distances.

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"Quantum entanglement is valuable in transmitting particles such as atoms and photons where the most delicate properties are significant and where simple approximation is not enough, " he explains.

CNN: Beam me up: Just how close are we to teleportation?

The practical application here is that the ability to maintain entanglement for a long period of time is key to building real quantum information networks.

FORBES: New Technique Could Pave the Way for Quantum Information Networks