Scientists are teleporting stuff wooooooo!

I mean, damn.

This is like FTL or time travel or perpetual motion - it just can't happen!

Can it?

So, for example, the moon "knows" things about the earth and the sun, across a great distance. We know that it knows, because it acts on that knowledge. In a non-measurable, but real, way the moon "knows" when you leave the room.

What is grebt about this experiment is that it was a small, but non-quantum set of information sent to a small, but non-quantum destination, which is likely to be more useful than telling the moon you have gone to the bathroom.

Doesn't that information just travel at the speed of light though? I could be wrong.

this word was born to be mis-read

"The experiment involved for the first time a macroscopic atomic object containing thousands of billions of atoms."

Now, I'm pretty sure thousands of billions of atoms ain't much - but it is matter and not 'merely' information.

I was pretty sure that such entanglement couldn't send information though - it could just affect in an unpredictable way an already unpredictable measurement. Guess I'll have to start reading up on this stuff again.

> It was just information

Why do you hate Nightcrawler? Or more seriously, thanks for the explanation; it wasn't clear in that first blurb-ish article. I'm now reading the second one ledge linked and the wiki article on quantum entanglement to see if I can get within shouting distance of an actual idea of what all this means.

This is completely wrong. Learn one quantum entanglement (and one gravity).

This quote from the csmonitor article is very instructive:

"Teleportation is a really unfortunate term," says University of Michigan physicist Christopher Monroe. "It implies moving people from point A to point B," when in fact it refers to "creating a quantum state in one place that used to exist somewhere else" with no intervening connection.

Matter is not being physically transferred from one place to another, as Andrew already pointed out. There are no "faster than light" implications because entangled particles (or objects) don't need to communicate information about their respective quantum states once a measurement is made on one of them (this is *the* key aspect of what it means for particles to be entangled).

Also note that the "object" being teleported is the quantum state of a beam of light, not that of the ensemble of cesium atoms. The only reason why (I think) they used so many atoms is to produce a measureable signal during the readout stage of their experiment (when they verify the quantum state of the cesium ensemble).

As it pertains to communication schemes, teleportation is promising because it allows quantum states to be transmitted over long distances relatively easily, as opposed to certain cryptography schemes that rely on sending individual entangled particles (i.e. photons) over multiple channels.

i pooped.

xo,

ur not real.

fu,