> the measurement on the first particle injects quantum energy into the system<p>That set off my bogometer. What is "quantum energy"?<p>The devil is always in the details, but I have yet to see a popular account of anything having to do with entanglement that didn't completely ignore the fundamental fact that entanglement and measurement are the same physical phenomenon. Once you realize that most of the mysteries simply evaporate.<p><a href="http://www.flownet.com/ron/qm.pdf" rel="nofollow">http://www.flownet.com/ron/qm.pdf</a>
I couldn't help but laugh at this unfortunate wording "He gives the example of a string of entangled ions oscillating back and forth in an electric field trap, a bit like Newton's balls."<p>I hope they mean Newton's cradle...
The article seems to suggest it's impossible to communicate faster than light speed using entanglement b/c they need to know a bit of information at the sender's side which can't be sent using the entanglement phenomenon itself.<p>That's something I'd like to understand better..<p>Is it really impossible to distinguish between an 'On' state and an 'Off' state at the receiver's end without this piece of information? Is it our ability to measure the observation that hinders this or is this a law of physics that will 'never' be broken?
Working for a test and measurement company I would be curious to see the non generalized version of this report. One with tests and measurements, possibly some data and techniques.
So, the summary doesn't make this clear, and if you were to use the colloquial definition of teleportation the title of the article would simply be wrong.<p>Quantum teleportation is nothing like teleportation in shows and movies. The big difference is that you have to <i>already have something on the other side</i>. In other words, you can't teleport a rat to mars because there is no rat on mars. Yet. :-p<p>Further, that rat would have to be <i>entangled</i> with another rat on mars, not something trivially accomplished. At least that's my understanding of it.<p>Here's an article on QM teleportation that's easier to grok (although not about teleporting energy specifically):<p><a href="http://www.research.ibm.com/quantuminfo/teleportation/teleportation.ps" rel="nofollow">http://www.research.ibm.com/quantuminfo/teleportation/telepo...</a>