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Einstein's 'Spooky Action' Has Been Demonstrated On a Massive Scale For the First Time (sciencealert.com)
schwit1 shares a report from ScienceAlert: For the first time, scientists have managed to show quantum entanglement -- which Einstein famously described as "spooky action at a distance" -- happening between macroscopic objects, a major step forward in our understanding of quantum physics. Quantum entanglement links particles in a way that they instantly affect each other, even over vast distances. On the surface, this powerful bond defies classical physics and, generally, our understanding of reality, which is why Einstein found it so spooky. But the phenomenon has since become a cornerstone of modern technology. Still, up until now quantum entanglement has only been demonstrated to work at the smallest of scales, in systems based on light and atoms, for example. Any attempt to increase the sizes has caused problems with stability, with the slightest of environmental disturbances breaking the connection. But new research changes all of this, by demonstrating that this "spooky action" can indeed be a reality between massive objects. We're not talking massive in the black hole sense but in the macroscopic sense -- two 15-micrometer-wide vibrating drum heads. And the next step will be to test whether those vibrations are being teleported between the two objects. The research has been published in the journal Nature.
technically we have the capability to assemble single 1nm transistors since 2016... you can fit alot of transistors in 1um even at larger scales. I wonder what happens though when you entangle two circults.
http://newscenter.lbl.gov/2016/10/06/smallest-transistor-1-nm-gate/
Massive is relative.
15 micrometer is only 0.015 mm. Massive would be 1,500 meters.
0.015 mm is massive compared to 10^-10 m.
Context matters.
15 micrometers is bigger than the cross-section of a single-mode fiber optic cable core.
If they can make this reliably work this could revolutionize communications. Manufacture two transceivers that are quantum-entangled, so four 'drumheads', one for each direction. Install these in the manner of SFPs in network switches or routers. Use them with no medium between them at whatever distance one needs. No more horizontal boring, no more trenching, no more fiber, no more intermediate points as repeaters, no more problems with disrupting all points in between.
I do both networking and infrastructure for a living. Even if these things as a practical product were very expensive I would still welcome putting my infrastructure work for long-haul and trunking/backbone out of business.
Do not look into laser with remaining eye.
Sorry, but Bell's Theorum only rules out local hidden variables. Non-local hidden variables are still within the bounds of the theory. But they're a bit weird, as they're non-local in time as well as space. I don't think the theory puts a bound on *how* non-local they can be, but a hypervolume of light years would be difficult to test. (OTOH, I'm no expert in this area. I believe that Boehm thought they were global rather than just non-local...but that was decades ago, and things may have been found out since then. OTOH, perhaps it's really implied by the theorum.)
Still, my favorite interpretation is EWG multi-world rather than hidden variables. For parsimony I add a supposition that I can't justify which is that in addition of the state space transitioning to all possible futures, it also arrives from all possible pasts, giving a lattice rather than a tree. I've got a vague feeling that this may determine the existence and strengthening of dark energy since all the pasts still exist in the hypervolume of the universe. You just can't go into the past because all of your particles have an inertial velocity along the time axis resulting from the big bang. If this *can* be made sensible, somebody much better at that kind of math than I am would need to tackle it. But it explains the rotation of the space-time axis as you accelerate near to the speed of light, or at least I think it does. I'm not quite clear how many dimensions this idea of the universe would require, but I'm sure it's less than the 16 that were used in deriving relativity, so it could probably fit into the same framework.
I think we've pushed this "anyone can grow up to be president" thing too far.