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First Object Teleported From Earth To Orbit (technologyreview.com)
Researchers in China have teleported a photon from the ground to a satellite orbiting more than 500 kilometers above. From a report: Last year, a Long March 2D rocket took off from the Jiuquan Satellite Launch Centre in the Gobi Desert carrying a satellite called Micius, named after an ancient Chinese philosopher who died in 391 B.C. The rocket placed Micius in a Sun-synchronous orbit so that it passes over the same point on Earth at the same time each day. Micius is a highly sensitive photon receiver that can detect the quantum states of single photons fired from the ground. That's important because it should allow scientists to test the technological building blocks for various quantum feats such as entanglement, cryptography, and teleportation. Today, the Micius team announced the results of its first experiments. The team created the first satellite-to-ground quantum network, in the process smashing the record for the longest distance over which entanglement has been measured. And they've used this quantum network to teleport the first object from the ground to orbit. Teleportation has become a standard operation in quantum optics labs around the world. The technique relies on the strange phenomenon of entanglement. This occurs when two quantum objects, such as photons, form at the same instant and point in space and so share the same existence. In technical terms, they are described by the same wave function.
Outside of an arbitrary definition that says a photon is an object because we say so, a photon is most certainly not an "object" using any ordinary definition of the term or even a definition that the vast majority of physicists would use (i.e. than an "object" has mass, which photons most certainly don't have or else they would never be able to travel at light speed).
AntiFA: An abbreviation for Anti First Amendment.
peekaboo is not teleportation?
Florid descriptions are for Rolling Stone types with no word limits. This should be a summary. Half of those words are useless.
... beam me up!
Won't be long now until stock traders are using this for High Speed Trades.
...now, beam down my clothes.
in order to understand everything that was going on with the experiment. I wish the traditional media good luck in trying to translate all of that into an article for mass consumption.
Christ's keys - what they've done is amazing - can we NOT bullshit it up by then pretending it's teleportation? show some bloody respect.
Fuck off.
I do not want your cheap brainburning drugs. They are useless for work. And I am a working man today.
If you are going to hype like this, why aim so low? Might as well tack on cure for cancer and solving world hunger.
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
How do they know it's the same photon?
What it means is, that the quantum state from a particle on Site A is transferred to a particle on Site B. This involves an entangled state of two particles in A and B. Depending on the experimental set up the entangled particle in site B may be the object the quantum state is transferred to. The "teleportation" involves a measurement in Site A, and to completely transfer the quantum state to B one needs the (classical) result of this measurement at site B.
"By the way if anyone here is in advertising or marketing... kill yourself." -- Bill Hicks
That's how the can do free shipping on everything!
Title: "From Earth To Orbit"
Article: "first satellite-to-ground quantum network"
Whoever invented the term "quantum teleportation" should be sentenced to prison life. Photons are NOT "teleported", what is "teleported" is the state of the physical system they represent (and this happens through classical communication, so no faster-than-light effects, EVER).
This is a big misunderstanding in popular science regarding the effects of quantum entanglement. You cannot use quantum entanglement to "teleport" information, nor matter.
At most, what could be *very hypothetically* conceivable is a scenario like:
1) you create on Earth two identical vats containing a large mass of "entangled matter", whatever it means
2) you move one of the vats on Mars, this has be done CLASSICALLY (i.e., rockets or similar)
3) then, on Earth, you enter a ridiculously complex chamber device, which annihilates simultaneously you and the vat, producing a large stream of data
4) this data is transmitted (i.e., antenna link) on Mars, where it is received by another, even more ridiculously complex device
5) this device acts on the vat on Mars, the vat is destroyed but not before you emerge from the vat.
This is as much realistic science-fiction can go. Source: I am a quantum information scientist.
I decline every responsibility in the case that it is not really *you* emerging from the Martian vat, but another cosmically malignant entity.
They pointed a flashlight at some satellite.
Troll is not a replacement for I disagree.
This proves beyond a doubt that we must genocide all of them. I am a proud Roman Catholic, and I believe that anyone that possesses knowledge beyond what the Church says they should have... must be tortured and killed.
That being said, I'm OK with priests raping prepubescent children, and having drug fueled homosexual parties, because I support NAMBLA and LGBT.
Great. Now I'm going to have to listen to my elderly father go on (again) about how we've invented the Ansible.
But can we do time travel with it yet?
Great scott.
https://xkcd.com/465/
technically, what happened was a state change was transmitted via entanglement, but don't let facts get in the way of sensationalist journalism.
As documented in the historical documents, PANTS will be OBSOLETE in the 24th century.
.sig...
yow, that sounds like an absolute Zippyism
also, someone please quote me on that in their
the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff
we'd rather build a wall...
Scientists: laypeople are twisting our words and making hyperbolic claims based on their misunderstanding of our research.
Other Scientists: Hey let's name this phenomenon after a fantastical and thematically similar yet completely unrelated concept in popular culture.
When can they teleport planet earth into orbit? Is a photon an object?
What is the purpose of this experiment running from orbit, or from some greater distance than it had been done before? Was there some speculation that entanglement would no longer manifest due to distance or difference in velocity or within the vacuum of space or something?
Better known as 318230.
Ugh, I despise 'teleport' in this context.
No, the farking photon didn't jump from China up to the satellite.
The satellite made a really good copy. That's not the same damn thing.
The Chinese people are on the slope to dominate orbital, and therefore international realtime communications.
Westerners on Slashdot spend their time bitching about the accuracy of a title of a paper.
This is how you lose.
My God, it's Full of Source!
OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
when they can teleport electrons, protons, and neutrons. Preferably a 200 pound mass of them that happens to be in the shape of a man. Until then, yawn.
Slow down, cowboy! It has been 4 hours since you last posted. You must wait another few hours.
surely you mean:
Photon new_photon = new Photon(old_photon);
after all, we're trying to duplicate the properties.
the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff
^This.
The key unexamined aspect of Star Trek is that _EVERYBODY_ already knows all this, and they just doesn't care. They've been brainwashed by Starfleet to step into to the suicide booth without a second thought. Which gives you a pretty damning characterization of the pro-transporter lobby.
the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff
And here in Amerika we think collage is baaad. Yeee Haw! Pass the bullets and Bibles!
to the point that we can teleport all politicians up there ... and then quickly destroy the machine before they figure out what we did and try to get back again.
All bets are off!
Not at all, he's just being objective...
My cellular telephone has gadget next to the camera lens on the back that teleports a whole shit-ton of photons whenever I try to take a picture.
Have you ever seen a photon? Neither did I! Please call us when they have "teleported" a tangible object, like a sheet of paper of a smartphone. Until then, please stop wasting our time.
Can a photon have any distinguishing characteristics that make it unique from other photons? A racing stripe, a mustache, maybe a hooked end, etc? How does one know it was the same photon "teleported" or just a different stray one?
It's a copy of data.
Also, a scifi short story.
If ya can't teleport mass
you're a horses ass
Less photon's a glowton
I'll take a pass.
Ooooh, entanglement. /me goes and gets the crowbar.
You can not teleportate a photon because a photon is not an object else is a particle or wave.
"two quantum objects, such as photons" <- photons are not objects.
When there is a signal suppression as the presence of Sun or clouds then the message is lost and it will sound a fatality.
First, before I say why I laugh, let me say that all this quantum stuff is interesting and can lead to some really great stuff - I'm NOT denying the observations or the usefulness of the various phenomena associated.
With that said, here's what I find so funny:
NOBODY even knows exactly what a photon is. There's the old wave/particle argument, but it's actually deeper than that: What is the precise physical/energy makeup of a single photon? For this sort of experiment to be valid, you need to know the precise details of the thing you are claiming to have teleported. If you are given two containers which each contain a single photon, can you tell one from the other? If I were to teleport one of two people, let's call them Bob and Susan, then I would recognize and know the one that arrived at the destination - and would know I had failed if somebody named Fred arrived instead. Having a scheme that cause a bunch of Freds, or other random people, to arrive at the destination might be useful, but it would not be teleportation of Bob or Susan. If you observe quantum entanglement you are certainly seeing something interesting and potentially useful, BUT how do you KNOW with absolute certainty that you are seeing the exact two photons you think? How do you know you are not seeing some third thing behaving as you hoped/expected would be the second? Not knowing this, how can you claim to have teleported the thing you cannot tell apart from any similar thing? Small amounts of uncertainty and conjecture, heaped into a massive pile do not become certainty.
In summary, I think the quantum entanglement experiments are very interesting and I have hopes they will lead to things like faster interplanetary communications eventually (where an unknown but useful phenomenon can be USED even if not yet understood) but that's a far cry from the claim that a very specific individual thing has been teleported.
https://www.amazon.com/gp/product/B00HVJB4VM
Witness BitZtream getting pwned!
How's life in the hypocrite lane?
a photon is most certainly not an "object" using any ordinary definition of the term or even a definition that the vast majority of physicists would use
Absolutely right.
And furthermore, a photon was not even what was "teleported". What was "teleported" was the polarization state of the photon. That is even less an "object".
http://www.geoffreylandis.com
A photon has no mass, because it travels at the speed of light. Nevertheless, due to energy-mass equivalence, it can exert gravitational effects.
A photon has no rest mass. It has gravitational mass: m = E/c^2
Physicists mostly use the term "mass" as shorthand to mean "rest mass". Mostly. But the word "mass" can have several possible meanings in physics, so if you want to be clear, you should specify which mass.
http://www.geoffreylandis.com
that was obviously a typo by the AC: he meant photons, not protons.
Again: the word "mass" can have several meanings in physics. When physicists are talking with each other, it is almost always clear from context which definition of mass is being used. But if there is any ambiguity in which use of the term is being intended, you must specify which. A photon has zero rest mass. (Because it can never be at rest. When you stop a photon, it ceases to exist as a photon.)
http://www.geoffreylandis.com
Tachyons, if they existed, have a rest mass that is an imaginary number.
(A difficulty with tachyons is that the theory only works in one dimension. With three spatial dimensions, tachyons become ill defined, because you can't be faster than light in all directions at the same time.)
http://www.geoffreylandis.com