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Radically Inept
Monday, August 23, 2004
  Teleporting through shit

BBC NEWS, "Teleportation goes long distance":
When physicists say "teleportation", they are describing the transfer of key properties from one particle to another without a physical link.
Yeah, I still think of 'teleportation' as de-materializing matter, and re-materializing it elsewhere, but...Anyway
Researchers from the University of Vienna and the Austrian Academy of Science used an 800m-long optical fibre fed through a public sewer system tunnel to connect labs on opposite sides of the River Danube.

The link establishes a channel between the labs, dubbed Alice and Bob. This enables the properties, or "quantum states", of light particles to be transferred between the sender (Alice) and the receiver (Bob).

In the computers of tomorrow, this information would form the qubits (the quantum form of the digital bits 1 and 0) of data processing through the machines.

The Austrian team encoded their qubits using a property of light particles, also called photons, known as polarisation. This property describes the direction in which they oscillate.

Quantum teleportation relies on an aspect of physics known as "entanglement"; whereby the properties of two particles can be tied together even when they are far apart. Einstein called it "spooky action at a distance".
This seems to me to be an expensive way to achieve what I believe humans are capable of doing with out fancy equipment, but we don't seem to be happy unless we build expensive toys.
The researchers were able to teleport three distinct polarisation states between Alice and Bob via the fibre-optic cable through the tunnel.

The significance of this research was that it took place under "real world" conditions.
Found via KurzweilAI.net Newsletter. 
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