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Old 07-10-2007, 08:59 AM   #1
Jo
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Scientists find way to teleport atoms, la Star Trek

From news.com.au:
Quote:
Scientists find way to teleport atoms on optic fibres

  • Australian boffins find way to teleport atoms
  • Researcher compares it to Star Trek beaming
  • Method involves lasers, extremely cold temperatures

AUSTRALIAN physicists have discovered a method that could see atoms being teleported between Sydney and Perth and pave the way for possible Star Trek-like travel in the future.
The method involves cooling down a group of atoms and shooting lasers at them, making them "appear to disappear" before using transporting them along optic fibres at light speed to another location where they can be reconstructed.

The "simple" way of transporting atoms was developed by physicists Murray Olsen, Ashton Bradley, Simon Haine of the Australian Research Council Centre for Quantum-Atom Optics, and and Joseph Hope of ANU.

Dr Olsen told NEWS.com.au the method was very much like the Star Trek characters' favourite way to get back onto the ship.

The atoms are cooled to almost absolute zero, or -273C. At a billionth of a degree above this temperature, a quirk of physics makes all the atoms start behaving in the same way. Then the scientists zap them with two lasers. If you cool these atoms down enough ... in a condensate, they all enter the same quantum state, Dr Olsen said.

When a few thousand atoms are overlapping (and you hit them with the laser beams) they basically disappear.

We can use an optic fibre (to transport the signal at the speed of light) into a second condensate, which could be in another room, or another building, or another state.

Weve got the coldest thing in the universe and the fastest speed in the universe.
More here.
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