- Wed Jun 04, 2014 10:07 pm
#8462
Scientists teleport quantum information across the room.
Want to know what Einstein found "creepy"? Read on...
Researchers working at TU Delft's Kavli Institute of Nanoscience in the Netherlands claim to have successfully transferred data via teleportation. By exploiting the quantum phenomenon known as particle entanglement, the team says it transferred information across a 3 m (10 ft) distance, without the information actually traveling through the intervening space.
"Entanglement is arguably the strangest and most intriguing consequence of the laws of quantum mechanics," said the head of the research project, Professor Ronald Hanson. "When two particles become entangled, their identities merge: their collective state is precisely determined, but the individual identity of each of the particles has disappeared. The entangled particles behave as one, even when separated by a large distance."
As electrons in an atom exist in orbits around a nucleus – like the way that the Earth spins on its axis – electrons also have "spin." When two electrons are entangled (that is, when they interact physically) and are then forcibly separated, the spin information on each becomes opposite to the other; they are essentially turned into mirror images.
However – and this is the bit that Einstein found "creepy" in his rejection of the entanglement theory – when one of the entangled electrons has its spin direction changed by some means, the other electron immediately reverses its own spin direction. The distance in the Kavli Institute tests was 3 m (10 ft) but, theoretically, this distance could have been hundreds of light years.
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Sources
GizMag
Want to know what Einstein found "creepy"? Read on...
Researchers working at TU Delft's Kavli Institute of Nanoscience in the Netherlands claim to have successfully transferred data via teleportation. By exploiting the quantum phenomenon known as particle entanglement, the team says it transferred information across a 3 m (10 ft) distance, without the information actually traveling through the intervening space.
"Entanglement is arguably the strangest and most intriguing consequence of the laws of quantum mechanics," said the head of the research project, Professor Ronald Hanson. "When two particles become entangled, their identities merge: their collective state is precisely determined, but the individual identity of each of the particles has disappeared. The entangled particles behave as one, even when separated by a large distance."
As electrons in an atom exist in orbits around a nucleus – like the way that the Earth spins on its axis – electrons also have "spin." When two electrons are entangled (that is, when they interact physically) and are then forcibly separated, the spin information on each becomes opposite to the other; they are essentially turned into mirror images.
However – and this is the bit that Einstein found "creepy" in his rejection of the entanglement theory – when one of the entangled electrons has its spin direction changed by some means, the other electron immediately reverses its own spin direction. The distance in the Kavli Institute tests was 3 m (10 ft) but, theoretically, this distance could have been hundreds of light years.
Read More
Sources
GizMag
"You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete." R.Buckminster Fuller