Chinese Physicists Teleport Photons Over 100 Kilometers

http://www.popsci.com/science/article/2012-05/chinese-physicists-teleport-protons-over-100-kilometers

By Dan Nosowitz Posted 05.11.2012 at 11:45 am

 

Beam Us Up Teleportation doesn’t work for humans — yet — but it works over long distances, a new study reports. Time Magazine

Teleportation, sci-fi-y as it sounds, is actually not fictional or even new; two years ago, Chinese physicists broke the then-current record for quantum teleportation by teleporting photons over 10 miles. But a new effort from that same team demolishes that record, beaming the photons over 97 kilometers.

The physicists, working from the University of Science and Technology of China in Shanghai, have again taken advantage of quantum entanglement for the purposes of moving an object from one place to another without ever moving in the space between. According to Technology Review, “The idea is not that the physical object is teleported but the information that describes it. This can then be applied to a similar object in a new location which effectively takes on the new identity.”

The task uses a 1.3-watt laser “and some fancy optics” to beam those photons and retrieve them at the final location. The trick seems to be maintaining the photons’ information, since the beam widens over space, but eventually teleportation of this sort could be used to beam information incredibly quickly up to satellites.

[Technology Review]

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Posted on May 12, 2012, in Science / Technology and tagged , , , , , , , . Bookmark the permalink. 3 Comments.

  1. Reblogged this on Daniel Yen's Blog and commented:
    Is the transfer of information instantaneous or is there a delay in teleporting the photons?

    • The original article stated the research team was “able to teleport more than 1100 photons in 4 hours over a distance of 97 kilometres.” You can download the original research report here http://arxiv.org/abs/1205.2024 . The next major step for this technology would be to use the quantum mechanism to transfer information while both the sender and receiver are moving at different speeds and in different directions in 3D space.

  2. …. so we can anticipate that the teleportation device race will overtake the space race! And perhaps war mongerers all over the world might place their energies on this form of constructive development, instead of continuing to wreak havoc in order to fulfill their greedy need for power and control. Considering that teleportation is the way to overcome the limitations of travel to places which are presently out of our reach, due to them being light years away, it is entirely conceivable that human beings could be looking at outer-planetary travel opportunities in the not so distant future. What fun! I look forward to being able to travel globally in this manner as well. The ancients did this all the time, so I guess our modern technology is finally catching up!

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