Quantum teleportation over 143km smashes distance record



"Next up: the quantum internet?" - uh, no it's not silly Lucy Sherriff from ZDNet. Quantum teleportation is wicked cool, but it doesn't (currently) transmit any usable information. It doesn't look like that's a solvable problem, but it'd be a phenomenal breakthrough if they did.
 
From wiki,

Certain phenomena in quantum mechanics, such as quantum entanglement, appear to transmit information faster than light. According to the no-communication theorem these phenomena do not allow true communication; they only let two observers in different locations see the same event simultaneously, without any way of controlling what either sees.

Quantum teleportation transmits quantum information at whatever speed is used to transmit the same amount of classical information, likely the speed of light. This quantum information may theoretically be used in ways that classical information can not, such as in quantum computations involving quantum information only available to the recipient.
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Can anyone explain the benefits of this technology? We already have fiber optic cables transmitting data at light speeds - so what's the actual advantage here if we can't get FTL transfer?
 
zimok said:
From wiki,



Can anyone explain the benefits of this technology? We already have fiber optic cables transmitting data at light speeds - so what's the actual advantage here if we can't get FTL transfer?
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I have no clue but maybe it's the security? Since there's only 2 points that actually see the data, the sender and receiver with nothing in between like a wire/cable connected to multiple users and networks.
 
The way I see it, it's best not to try to think of the benefits when working on emerging technology. It'll certainly have a great benefit, but there's still a ways to go before we find out what.
 
zimok said:
From wiki,



Can anyone explain the benefits of this technology? We already have fiber optic cables transmitting data at light speeds - so what's the actual advantage here if we can't get FTL transfer?
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huge in the credit card/ATM world and other security fields.
 
zimok said:
From wiki,



Can anyone explain the benefits of this technology? We already have fiber optic cables transmitting data at light speeds - so what's the actual advantage here if we can't get FTL transfer?
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"By exploiting the property of Quantum entanglement, the communication is instant. Because the pair of entangled photons react instantly, regardless of the distance. Actually they can react even if they are on the opposite side of the galaxy."

Faster than the speed of light!! fucking sick!
 
davidlee said:
"By exploiting the property of Quantum entanglement, the communication is instant. Because the pair of entangled photons react instantly, regardless of the distance. Actually they can react even if they are on the opposite side of the galaxy."

Faster than the speed of light!! fucking sick!
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Right, but they were using current transmission methods--lasers--to send a good bit of the transmission instead of actual quantum entanglement. So actual practicle use of this, and the massive security benefits are still a long way off. As of now, interception of all kinds is still possible. And interception is not something you want to collide with if you're transporting something.
 
Rexibit said:
Right, but they were using current transmission methods--lasers--to send a good bit of the transmission instead of actual quantum entanglement. So actual practicle use of this, and the massive security benefits are still a long way off. As of now, interception of all kinds is still possible. And interception is not something you want to collide with if you're transporting something.
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Holy fuck. Everytime a new breakthrough happens there's always some Buzz fucking killington that has to come along and start spewing his bullshit that we already know.

OF COURSE IT'S FULL POTENTIAL IS NOT NEARLY TAPPED YET.

OF COURSE IT'S A NEW PHENOMENON THAT WE KNOW ALMOST NOTHING ABOUT.

OF COURSE WE CAN'T FUCKING USE IT YET.

Thanks Buzz killington, I really needed that reality check; how dare someone get optimistic about something that could better humanity in the future. Shame on me.
 
Most of history's greatest breakthroughs were built on top of other things learned for the sake of science, with no immediate applicable benefit. Hell, many of those original discoveries were made accidentally or tangentially while pursuing other theories. Science for science sake.
 
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