Spooky Quantum Entanglement Gets Extra 'Twist'
Jesse Emspak, LiveScience Contributor
Date: 06 November 2012 Time: 10:02 AM ET
| Here, a false-color image of a laser beam showing a superposition of entangled photons spinning in opposite directions. |
CREDIT: Copyright: Robert Fickler/University of Vienna
Now physicists at the University of Vienna in Austria have "virtually intertwined" or entangled two particles spinning faster than ever in opposite directions. Entanglement occurs when two particles remain connected so that actions performed on one affect the other, despite the distance between them. (Einstein referred to this eerie connection as "spooky action at a distance.")
In the new study, Anton Fickler and his colleagues entangled two photons that had a high orbital angular momentum, a property that measures the twisting of a wave of light. In quantum physics, particles such as photons can behave as particles and waves.
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