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German Scientists Successfully Teleport Classical Information (upi.com)
An anonymous reader writes from an article on UPI: Using a series of laser beams, a pair of German scientists teleported information without the transfer or matter of energy. "Elementary particles such as electrons and light particles exist per se in a spatially delocalized state," Alexander Szameit, a professor at the University of Jena, explained in a press release. Classical information is coupled using a process called "entanglement." "As can be done with the physical states of elementary particles, the properties of light beams can also be entangled," said research Marco Ornigotti. "You link the information you would like to transmit to a particular property of the light." Researchers used polarization to encode information within a laser beam, enabling the teleportation of information instantly and in its entirety without loss of time. Whereas quantum information and quantum systems describe particle properties that are inferred, classical information describes physical properties directly measured.
They just figured out non-local data transmission at FTL speeds.
They arent transmitting quantum states, they are transmitting polarization data, which can be used to encode classical information, and transmitted such classical information.
This means that you can transmit from point A to point B, "instantly", as long as you can entangle the two points.
Does this mean that causality is only a suggestion, or will the physical constraint of having to usefully entangle the two points save the day here?
We have people named all kinds of things in the US. They are still Americans.
Germany is a cosmopolitan, modern industrial nation. There is no reason why a native born German citizen cannot have that name.
I always check each of these type of news items, hoping one may attempt to explain how it works. Alas, no such luck yet again. :(
You are correct of course. Additionally, we have quite a number of italian immigrants, who came in the time of the "Wirtschaftswunder" (50s - 70s). Plus, a sizeable chunk of science in Europe is done where various institutions in different countries work together.
I was thinking a few days ago, that perhaps the reason this might work is because the entangled pairs when moved apart are moved at non-light speeds. Therefor, even though it may NOW be transmitting at what seems FTL, the entangled system "as a whole" (including the moving apart of the entangled pair) isn't moving anything at FTL. I realize this is a total metaphysical explanation...
That's a name belonging to a German scientist?
Across the ocean is this lovely land, where there are these cowboys living in a city called "Silicon Valley" while drinking sweet tea and clam chowder. The state is called Washington D.C , known for its perpetual rain and coffee production, while also being the site of the historic Paul Revere ride and the Native American Trail of Tears bordering Canada, as not far away the state of New York City grows its almonds in the intense sunlight of the Mississippi coast.
Contrary to popular belief, not all Germans are known as "Guenter Gottfried" and "Friedelumurr Gieselheart", just like there are many Americans with names like "Pierre" and "Midori".
"Set a man a fire, he'll be warm for the rest of the night. Set a man afire, he'll be warm for the rest of his life."
Under 'classical information' I first thought of a piece of parchment with a statement written with a goose-feather, _that_ would have been cool!
From the press release: "With this form of teleportation, we can, however, not bridge any given distance," admits Szameit. "On the contrary, classic teleportation only works locally." http://www.uni-jena.de/en/Rese...
Come on it is the first line of the summary and a glaring error editors.
"Elementary particles such as electrons and light particles exist per se in a spatially delocalized state."
A bit like Iowans, then?
If time is relative, then it would seem to reason that causality would have to be at best local to one's own time frame.
Only it doesn't work like that at all in relativity: causality is preserved by the fact that information cannot travel faster than light. If you can transmit information faster than this then you can create real paradoxes which are not at all explainable i.e. events which occur in one reference frame and which do not occur in another because someone stopped them. This is not something which has ever been observed.
My guess is that the information speed is actually less than, or equal, to that of light because we have seen this sort of thing before with tunnelling photons. A photon can tunnel through a potential barrier faster than light but the chance that it makes it is less than 100%. This means that you have to send many photons to be sure the signal is transmitted and by the time you do that the average speed of information transmission has dropped to the speed of light even though single photons are faster.
I don't know the details of this experiment yet but I very, very strongly doubt that they actually transmit "actionable" information (i.e. information that could influence an observer's actions) at FTL speeds and I expect that the summary misread and misunderstood the results.
I just watched this (https://www.youtube.com/watch?v=dEaecUuEqfc) which says such a thing should be impossible.
:T:R:A:N:S:
Funny how even tried to attack me when I suggested the possibility...
Religion: The greatest weapon of mass destruction of all time
Flight takes many decades, but they stay in contact with earth in realtime.
This utterly breaks causality. For example suppose a terrorist had planted a bomb on the ship and uses this instant signal to detonate it. However nearby our hero Buzz Lightyear is cruising in the opposite direction at a large fraction of the speed of light. He sees the ship explode but in his frame of reference the terrorist of Earth has not actually pushed the button yet so he carries on flying to Earth and shoots the terrorist before the signal is sent....so why did the ship explode? ...and if it didn't explode why did Buzz fly to Earth and shoot someone?
The moment you have FTL information transmission you have time travel: the two are inextricably linked in relativity and the moment you have time travel you have causality violations. So either this experiment does not transmit actionable information FTL or there is a serious flaw with relativity. The later would be an extraordinary claim which requires extraordinary evidence.
Tech like this would explain why SETI hasn't turned up anything. We've only been transmitting EM for around 150 years, and if this tech actually works in another 50 years this will probably be the main comms for all probes, off-world colonies, etc. In another 100, it would replace most other communication systems. That is, of course, assuming, President Trump or President Cruz don't start WWIII lol.
??
Does not sound German in my ear. Maybe scandinavian (a Danish name crossed with something British).
Yet strangely, all Swedes are named, "Sven".
You are welcome on my lawn.
Yet strangely, all Swedes are named, "Sven".
Nonsense! Just flip through the IKEA catalog, to see the richness of Swedish names.
My favorite Swedish female name is "Skrolan", and if I had a St. Bernard dog, I would name him "Bootsman".
Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
>>> Researchers used polarization to encode information within a laser beam, enabling the teleportation of information instantly and in its entirety without loss of time.
Wait they transmitted information between two locations faster than the speed of light? I thought quantum physics states that even entaglement can't break the speed of light?
Information in on one beam, information out on two beams. That is about it right? This breaks quantum encryption on fibre optic links does it not, because you can duplicate a state without interfering with the original in a detectable manner?
However if you were dreaming of faster pizza deliveries this is not what the work is all about.
This supports the theory that people who think "information" (aka a human concept created by human thought) cannot transfer faster than the speed of light have absolutely no logical basis for thinking that other than observations of the non-quantum mechanics of the universe, which obviously is a flawed basis to begin with. Then they look at black holes and stick their fingers in their ears and go "nah nah nah can't hear you" and pretend black holes aren't part of the observable, measurable, simulatable universe.
Contrary to popular belief, not all Germans are known as "Guenter Gottfried" and "Friedelumurr Gieselheart",
No, many of them are called Sepp, particularly in the south.