"They're saying that by constantly squeezing the system, you can preserve entanglement at high temperatures. But how high? Galve and co say this depends on the coupling between the oscillators. But they calculate that entanglement between a pair of calcium ions in an rf trap--a standard set up in many labs--and show how it could be sustained at 50K. That's significantly better than the sub-4K systems that experimenters have to manage with today. "We believe this to be a huge experimental step," they say." - Kurt Starnes