Out of Pod Experience

It's been done.
Secondary.

And they've achieved a 100% success on particle entanglement at the University of Copenhagen, teleporting information a total of 50cm.

Applications would be theoretically real time communications with Space Probes, due to the hypothetical yet unverified in the lab entangled nature, yielding a virtual FTL communications platform.

Unverified reports suggest the device is made out of Lego.

This also means that Australians will get a better ping to Tranquillity I suppose, along with interesting effects on flash trading systems used in banks.

I'm quite ignorant on the subject, but what little I understand implies you can send a 1-bit signal with a single particle. Assuming the frequency can be very high, and that you can have multiple particles transmitting data in parallel, you can have a reasonable amount of bandwidth flowing from point A to B.

wouldn't reducing its temperature to absolute zero prevent it from moving randomly, then I suppose in theory one could use a form of rapid temperature altering to mimic on/off by replacing 1 and 0 with moving and not moving, its just as a well not everyone thinks the way you do =/ We wouldn't have computers or smart phones today if everyone assumed these ideas were impossible.

However as shown in the article the team have found a way to make series bit teleportation happen reliably.

The quantum entanglement phenomenon is believed to become a fundamental pproperty of the two materials. Spin on in one direction and you spin both in opposit directions, regardless of their positions in space. Its not true ftl transmissions as it doesn't actually transmit data, it just is.

That can be accounted for, especially when done on the same planet (identical frame of reference, the only adjustments needing to be made are for altitude).

But yes, there really isn't such a thing as simultaneous, particularly when travelling at extreme velocities (when frames of reference do all sorts of goofy ****).

@Karak: why FTL information transmission throws causality out of the window is, in simple terms, as following - there is a certain inertial frame of reference or sequence thereof (or such that can be constructed via Lorentz transformations) that you can then transmit information from the future of a worldline to the past of said worldline, effectively affecting the past of a particle by it's future. (Concept of worldlines see for example wikipedia or your trusted literature on special relativity)

I may address the rest properly when I can write up a proper explanation, for which I right now sadly lack the time. However, some simple stuff that may help being said: an event is considered "simultaneous" in two different inertial frames when a) the clocks of those two inertial frames have been synchronized and then b) an event occurs at the same t0 for both frames of reference. How the clocks are synchronized is with a radio signal - it's important to note that this process occurs only once, not continuously. (If I am mistaken here, please do correct me, but also please cite the source(s))

So yes, while there is indeed such a thing as "simultaneous" between two points (and my wording in the previous post has been less than fortunate), it is important to differentiate between "simultaneous" and "instantaneous" (when we're talking about wonky physics, anyway). With quantum entangled states, we're talking "instantaneous" collapse of the entangled wave function. It is my latest information that this "instant setting of entangled particle states no matter the separation" is not considered a violation of the STR because there is no way that actual information may be transmitted using this mechanism (the argument goes along the lines of "you have to know a measurement has been made at the other end, and you can only know that via a signal that travels with the speed of light"). This article, as I wrote in the edit, is, if I'm not mistaken, talking about transferring uncollapsed quantum states from one system to another (which is, again if I'm not mistaken, referred to as quantum teleportation) using a laser beam. No FTL involved here.

I find this thread interesting.

Blood is shooting out of my nose and ears..but im trying to keep up.

I always understood quantum entanglement as follows:

You have 2 M&Ms, a red one and a green one. You put each in it's own opaque envelope. They are now "entangled." You mail one randomly selected envelope to China. Later, you open the envelope you still have, and based on it's color instantly know the color of the one that's in China.

The issue with trying to use it for FTL communications is, you can't change anything about the M&M in China. If you have the green one, nothing you do can make the red one in China become green without directly interacting with it again. You also can't change it from a regular M&M to a peanut M&M, or from a red M&M to a red Skittle, or anything of that sort without getting your butt out to China and changing it yourself.

Its damn complicated, and man cannot understand everything to the depths of a master at once so we'd be fools to pretend we understand the underlying mathematics leading to the realisations of whats going on when the leaders of the field admit they have only an educated guess.

What I do understand is that the end result is real time communication over theoretically infinite distance, like watching an explosion in the distance you can see the light, and hear the boom, we will read the quantum output and then see the light come some time later.

Long as I can transmit kitten videos to Martian colonies in real time, its all good.

Every time I read something like this I imagine this will happen next ...