Einstein was wrong: Groundbreaking test reveals spooky 'quantum entanglement' phenomenon IS real

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Eighty years after Einstein terminated the notion of quantum entanglement as "spooky", Dutch researchers say they have verified the effect is actual, and that only observing one particle can rapidly change another far-away object. Scientists detailed an experiment in the journal Nature this week that disclosed how two electrons at distinct locations 1.3 km apart on the Delft University of Technology campus confirmed a clear, invisible and immediate connection. Outstandingly, the new study closed gaps in earlier tests that had left some uncertainty as to whether the spooky connection projected by quantum theory was real or not. Einstein famously asserted, in a 1935 scientific paper, that what he called "spooky action at a distance" had to be wrong, and that there must be unidentified properties of particles to clarify such counter-intuitive behavior.

The notion surely stuns our day-to-day experience of the world, where variation only seems to occur through local exchanges. But in the past couple of decades, scientific proof has been building that particles can certainly become "entangled" so that no matter how far apart they are, they will always be linked. The Delft experimentation is certain because, for the first time, researchers have closed two potential loopholes at once. The first proposed that particles could somehow synchronize behavior ahead of time, while the second implied that testing might spot only a subclass of arranged entangled pairs. To verify their case, the group led by Delft professor Dr Ronald Hanson used two diamonds comprising minute traps for electrons with a magnetic property called 'spin' and measured all entangled pairs across the 1.3 km separating two laboratories.

The experiment successfully closes a chapter in an 80-year scientific argument, but Dr Hanson said it also had vital implications for the future, since sophisticated cryptography is even now using quantum properties to guarantee data security.

Such quantum encryption systems will only be 100 per cent safe, though, if all loopholes are closed, as in the Delft system.

Dr Hanson said "Loopholes can be backdoors into systems. When you go loophole-free then you add an extra layer of security and you can be absolutely certain there is no way for hackers to get in."
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