teleportation - it's real

I can’t believe no one has created a thread of this yet. This is one of the greatest achievements of our time. Teleportation is possible: link

I’ve read about the theory some time ago, but I could never have dreamed we could actually pull it off, but now scientists have created a means to send information from one place to the next without the necessity of a medium. Now, if only they managed to create a holodeck, and I’ll be a happy camper.

So how much will “Instant Shipping” cost us?

There was a thread on this just a day or two ago, but I don’t think it got much traction.

Amazing! How can this not be world-shattering news? Or are we more interested in Paris Hilton’s latest waxing?

No one cares because it won’t have any direct impact on their lives at this point in it’s development.

Show me a news of a car being teleported across the globe and you’ll have my utmost attention.

And yes, people are actually more interesting in Paris’s latest waxing… sadly. Maybe we can beam her ass to another galaxy as a test subject :slight_smile:

Still, the space program didn’t impact people’s lives in the least either, but people were still clutched to their TV set. But I guess all the fire and smoke made that at least interesting to watch.
However, I feel that this tidbit of progress will impact our lives far greater than anything NASA has found in orbit.

Does this violate the speed of light limit on speed of information transfer?

Here’s the previous thread, which I’m afraid I helped kill with being a party pooper and pointing out that there’s no actual matter or energy transmission going on…

I’m also not quite sure why this is generating such a big splash just now, since the first quantum teleportation experiments with atoms were carried out back in 2004; the ‘first’ in this experiment is merely related to doing it to atoms some distance apart in separate enclosures, which is a significant technical breakthrough towards utilising the process in quantum computing, but nothing conceptually new.

It does. The way I understand it, it works like this:

  • create an entangled quantum pair (e.g. two photons that share the same quantum state)
  • send those to separate parts of the universe (this part is limited to the speed of light)
  • change one qubit of information in one part of the pair
  • the second part of the pair immediately has the same qubit changed. If the second photon was further away than light could have travelled, the information was transmitted faster than the speed of light.

It doesn’t. You always need to utilise a classical information transfer channel in order to enable the readout on the other end – IIRC, two bits of classical information must be sent for each qubit to be read out correctly (i.e. knowing the correct result better than chance).

Still, the information is transferred FTL, we just don’t have a way of FTL readout.

Not really; the information isn’t determined until the readout. You just have an atom in a quantum mechanical superposition of states.