“Teleporting quantum information is now a practical reality,” asserts Deutsche Telekom. The firm’s T‑Labs used commercially available Qunnect hardware to demo quantum teleportation over 30km of live, commercial Berlin fiber, running alongside classical internet traffic. In an email to Tom’s Hardware, Deutsche Telekom’s PR folks said that Cisco also ran the same hardware and demo process to connect data centers in NYC.
The firm’s T‑Labs used commercially available Qunnect hardware to demo quantum teleportation over 30km of live
Bit disingenuous to talk about teleporting things along a fiber line…
Also shows a fundamental misunderstanding of how quantum entanglement works…
But it’s actually pretty huge that they’re able to do this.
As someone who also doesn’t fully understand quantum entanglement… is it that when two particles are entangled and far apart, when we observe them they will always be in the same state? Is there any way to manipulate that state? If so, it seems like it would be pretty straight forward to use it for faster than light communications.
Yep
The thing is if it’s entangled, why is there a fiber cable?
If it’s teleportation, why is there a cable?
However what actually makes consciousness in a brain is (hypothetically, technically) microtubules forming a very tiny cable inside of which quantum superposition is able to be maintained while we are conscious. When even brief quantum entanglement used to be insanely hard anywhere and an environment like the brain considered impossible.
Like, it’s hard to tell what really happened from OPs article. But there should be much better articles explaining it, and this could actually end up being crazy important. Like, 20-30 years from now this might be how we finally get a real AI.
Quick edit:
Like, rather than one straight line to send data, if this can maintain even just entanglement in a simple fiber optic cable…
Then that’s huge.
If they just stretched a string between two containment chambers that each have an entangled particle, then what purpose is the string even serving?
Any source on your claim about consciousness? Sounds very speculative.
Thanks, that’s an interesting read. Still stand by my opinion that your statement is overly confident in explaining consciousness.
Penrose published a book on it in 1989.
For literal decades the only thing that ruled it out was the ability for quantum entanglement in the brain. Less than 2 years ago we proved not only was that possible, but quantum super position could be sustained for as long as we’re awake.
It’s a pretty safe time to be confident, even without accounting for Penrose being the literal smartest person on the planet.
Like, I’m not big on “appeals to authority” but if Sir Roger Penrose spends 37 years saying something is true, and just continually gets proven more right over the decades…
It’s not as far reaching as you seem to believe.
Like, gravity is just a theory too, shit is harder than people realize it is to prove.
not a big fan of 'appeal to authority ’
Literally glazing the guy sloppy style and basing their whole world view on a single random dude. Sorry, on ‘the smartest guy in the planert’.
Gravity is just a theory
Ah I see the problem. I opened a thread with the word ‘quantum’ on it. Lmao
I think you’re doing your argument a disservice by comparing it to theory of gravity. But I do appreciate learning about this hypothesis and that there is actual experimentation going on. Thanks again for sharing.
My non scientific intuitive guess is that the cable is there to reliably create the entanglement conditions.
So there’s a lot of incorrect assumptions and outright wrong ideas of how quantum entanglement is going to be used in a quantum network, or even a quantum Internet.
A hard rule: information cannot be sent faster than the speed of light.
When news articles try to summarize quantum teleportation, they incorrectly imply that information is being transmitted instantly. Quantum entanglement is not intended to send information. It’s meant to act like a hash or checksum. The magic in it is it enables both sender and receiver to know that their communication has been tampered with.
It has further use with encryption, but again, it’s to facilitate the encryption. The information is still being transmitted as light through the fiber network.
Quantum cryptosystems don’t move data faster than light but the payload is ‘teleported’ as in the data isn’t sent over the connection.
The entangled states are sent in such a way that when combined with previously transmitted qbits and sampled, the data appears at the receiving end without it ever going through the intermediary (a bit of handwavery because nobody actually understands quantum mechanics, especially physicists.
It is teleportation but not in a way that is FTL, all of the components of the data transmission obey the laws of physics… we just live in a world where the laws of physics allow for some weird and unintuitive shit.
You’re not wrong in that the connection’s security is absolute, any attempt by an attacker to read the data would disrupt the entangled states in unexpected ways which will result in an essentially random output. So if you’re getting data through the link then you know 100% that it is not being intercepted. It isn’t possible to copy quantum states for spooky physics reasons, so there is no such thing as a quantum wire tap.
There are nonlocal effects in quantum mechanics but I am not sure I would consider quantum teleportation to be one of them. Quantum teleportation may look at first glance to be nonlocal but it can be trivially fit to local hidden variable models, such as Spekkens’ toy model, which makes it at least seem to me to belong in the class of local algorithms.
You have to remember that what is being “transferred” is a statistical description, not something physically tangible, and only observable in a large sample size (an ensemble). Hence, it would be a strange to think that the qubit is like holding a register of its entire quantum state and then that register is disappearing and reappearing on another qubit. The total information in the quantum state only exists in an ensemble.
In an individual run of the experiment, clearly, the joint measurement of 2 bits of information and its transmission over a classical channel is not transmitting the entire quantum state, but the quantum state is not something that exists in an individual run of the experiment anyways. The total information transmitted over an ensemble is much greater can would provide sufficient information to move the statistical description of one of the qubits to another entirely locally.
The complete quantum state is transmitted through the classical channel over the whole ensemble, and not in an individual run of the experiment. Hence, it can be replicated in a local model. It only looks like more than 2 bits of data is moving from one qubit to the other if you treat the quantum state as if it actually is a real physical property of a single qubit, because obviously that is not something that can be specified with 2 bits of information, but an ensemble can indeed encode a continuous distribution.
This is essentially a trivial feature known to any experimentalist, and it needs to be mentioned only because it is stated in many textbooks on quantum mechanics that the wave function is a characteristic of the state of a single particle. If this were so, it would be of interest to perform such a measurement on a single particle (say an electron) which would allow us to determine its own individual wave function. No such measurement is possible.
— Dmitry Blokhintsev
Here’s a trivially simple analogy. We describe a system in a statistical distribution of a single bit with [a; b] where a is the probability of 0 and b is the probability of 1. This is a continuous distribution and thus cannot be specified with just 1 bit of information. But we set up a protocol where I measure this bit and send you the bit’s value, and then you set your own bit to match what you received. The statistics on your bit now will also be guaranteed to be [a; b]. How is it that we transmitted a continuous statistical description that cannot be specified in just 1 bit with only 1 bit of information? Because we didn’t. In every single individual trial, we are always just transmitting 1 single bit. The statistical descriptions refer to an ensemble, and so you have to consider the amount of information actually transmitted over the ensemble.
A qubit’s quantum state has 2 degrees of freedom, as it can it be specified on the Bloch sphere with just an angle and a rotation. The amount of data transmitted over the classical channel is 2 bits. Over an ensemble, those 2 bits would become 2 continuous values, and thus the classical channel over an ensemble contains the exact degrees of freedom needed to describe the complete quantum state of a single qubit.
They do everything, just to avoid direct peering with Cloudflare
I would like to know what the advantages are. I mean whats the point?
automated quantum stock trading in 5…4…3…2…1…
As far as I understand this, it’s not zero latency, it’s safer key exchange possible for some encryption based on a physical and not mathematical principle.
Would be cool, of course, if they really could achieve zero latency. That could do wonders to various infrastructure efficiency. Say, allow for electric grids and internet backbone lines to know of spreading load changes to optimize for them.
There’s going to be latency because the NIC on both ends still communicates with copper to the rest of the computer system(s.)
Still going to be faster than a fiber connection or copper. Not to mention the latency induced by say the IEX Magic Box.
Anyway, nothing about quantum entanglement suggests zero latency, it’s just a fancy name, in fact it’s two things with synchronized states.
Is there a quantum block chain for crypto currency yet?
90% accuracy is the difference between arriving safely at your destination and arriving as a headless corpse.
this is teleporting photons, not atoms.
though, this may actually be a step towards true holographic technology if they can teleport the photons in space and not just between consumer and emitter.
This is about “teleporting” information not physical material (if my understanding is correct)
What do you think teleporters do? They don’t physically move your body - they dismantle it and reconstruct a copy at the destination. The middle step is the moving of information. Transportation like in Star Trek is basically magic - The Fly is more accurate., and the fact that it failed to differentiate between the two organisms is a demonstration of a horrendous flaw in the technology. Although realistically he would have come out the other side as a gooey heap, because his DNA would have also been scrambled with the DNA of every microbe on his skin, his entire gut biome, and even the his eyelash worms - look it up.
Seriously, a person is a disgusting ecosystem just filled with all kinds of crazy shit. And that’s not even accounting for the cells in you with random-ass mutations from DNA transcription errors.
The only way for it to actually work world be to analyze the location and connections of every atom in the scanning area and then send that information to a machine that rebuild the scanning area exactly the same. And if you don’t destroy the original, you didn’t transport anything - you copy it.
