Quantum teleportation achieved over ten miles of free space

[Jeff]

By Casey Johnston

Quantum teleportation has achieved a new milestone or, should we say, a new ten-milestone: scientists have recently had success teleporting information between photons over a free space distance of nearly ten miles, an unprecedented length. The researchers who have accomplished this feat note that this brings us closer to communicating information without needing a traditional signal, and that the ten miles they have reached could span the distance between the surface of the earth and space.

As we've explained before, "quantum teleportation" is quite different from how many people imagine teleportation to work. Rather than picking one thing up and placing it somewhere else, quantum teleportation involves entangling two things, like photons or ions, so their states are dependent on one another and each can be affected by the measurement of the other's state.

When one of the items is sent a distance away, entanglement ensures that changing the state of one causes the other to change as well, allowing the teleportation of quantum information, if not matter. However, the distance particles can be from each other has been limited so far to a number of meters.

Teleportation over distances of a few hundred meters has previously only been accomplished with the photons traveling in fiber channels to help preserve their state. In this particular experiment, researchers maximally entangled two photons using both spatial and polarization modes and sent the one with higher energy through a ten-mile-long free space channel. They found that the distant photon was still able to respond to changes in state of the photon they held onto even at this unprecedented distance.

However, the long-distance teleportation of a photon is only a small step towards developing applications for the procedure. While photons are good at transmitting information, they are not as good as ions at allowing manipulation, an advancement we'd need for encryption. Researchers were also able to maintain the fidelity of the long-distance teleportation at 89 percent— decent enough for information, but still dangerous for the whole-body human teleportation that we're all looking forward to.



http://arstechnica.com/science/news/201 ... -space.ars

[stefano]

whole-body human teleportation that we're all looking forward to

Missing the point, totally; the classic mistake of seeing signs of the Jetsons or some such mainstream sci-fi fantasy in a discovery that means so much more.

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

[Jeff]

whole-body human teleportation that we're all looking forward to

Missing the point, totally; the classic mistake of seeing signs of the Jetsons or some such mainstream sci-fi fantasy in a discovery that means so much more.

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

Thanks for getting it, stefano.

[swindled69]

The Future of Technology 100 years down the road looks really amazing....now.....if we can jsut get there.....

[No_Baseline]

stefano wrote:

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

Seriously, the timing is mind boggling. They are literally proving in a controlled laboratory that every particle can communicate information with each other during the same time that 'we' have just created a giant gaping hole in the gulf sea floor, that we are melting the ice caps, that we are creating massive dead zones in the oceans.

There is a synchronicity thread going on here, maybe this belongs on that thread - is it a coincidence we are validating this connection while simultaneously doing a bang up job of destroying ourselves?

[82_28]

stefano wrote:

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

Seriously, the timing is mind boggling. They are literally proving in a controlled laboratory that every particle can communicate information with each other during the same time that 'we' have just created a giant gaping hole in the gulf sea floor, that we are melting the ice caps, that we are creating massive dead zones in the oceans.

There is a synchronicity thread going on here, maybe this belongs on that thread - is it a coincidence we are validating this connection while simultaneously doing a bang up job of destroying ourselves?

It's just the way they're gonna transfer the oil slick to the Persian Gulf. It's obvious. The science for these things are coming right along.

[No_Baseline]

It's just the way they're gonna transfer the oil slick to the Persian Gulf. It's obvious. The science for these things are coming right along.

[Simulist]

whole-body human teleportation that we're all looking forward to

Missing the point, totally; the classic mistake of seeing signs of the Jetsons or some such mainstream sci-fi fantasy in a discovery that means so much more.

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

It seems to me that one of the implications of this is the identity of each one of us and our direct relationship with each and every thing in the universe.

Who and what are we exactly?

"I am he as you are he as you are me and we are all together." — John Lennon

[Penguin]

whole-body human teleportation that we're all looking forward to

Missing the point, totally; the classic mistake of seeing signs of the Jetsons or some such mainstream sci-fi fantasy in a discovery that means so much more.

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

Damn straight.

[DoYouEverWonder]

whole-body human teleportation that we're all looking forward to

Missing the point, totally; the classic mistake of seeing signs of the Jetsons or some such mainstream sci-fi fantasy in a discovery that means so much more.

If, using actual tools built by man, we can see information being communicated between photons over ten miles (a mind-bogglingly vast distance if you consider the size of the particles in question), that's support for the idea that every particle can communicate information about every other, that you actually can see the world in a grain of sand.

It seems to me that one of the implications of this is the identity of each one of us and our direct relationship with each and every thing in the universe.

Who and what are we exactly?

"I am he as you are he as you are me and we are all together." — John Lennon

In other words, 'we are stardust'.

[Simulist]

That's right.

In fact, since those are also the words of Carl Sagan, I think he should be permitted to sum up the argument:

"The cosmos is also within us. We are made of 'star stuff.' We are a way for the cosmos to know itself."

— Carl Sagan, from Cosmos: A Personal Voyage, Public Broadcasting Service, 1980

[chump]

That's right.

In fact, since those are also the words of Carl Sagan, I think he should be permitted to sum up the argument:

"The cosmos is also within us. We are made of 'star stuff.' We are a way for the cosmos to know itself."

— Carl Sagan, from Cosmos: A Personal Voyage, Public Broadcasting Service, 1980

That's a good thing, isn't it?

[Col. Quisp]

Not sure if it's a good thing or a bad thing but it is kinda scary (the idea that we are here for the cosmos to know itself). Whatever the "cosmos" is. Guess it got lonely so it created us. Now it's bored with this "star stuff" and we are disintegrating. Sorry - did not mean to derail this very interesting thread...

[Cosmic Cowbell]

[Hugh Manatee Wins]

Utterly psyops bullshit.

Not one source in the op article. NOT ONE.

And the keywords have been used as decoys for ages now. RI flunks the skepticism test.
You all fall for the Mr. Science-inflected 'quantum-physics-as-WOO' line every damn time.