HONG KONG: Scientists say they have achieved quantum entanglement — a spooky state where the behavior of separate atoms is linked even if they are huge distances apart — for thousands of atoms.
Using just a single photon to initiate the process, physicists from MIT and the University of Belgrade say they’ve successfully achieved mutual entanglement of a record number of atoms, around 3,000.
Though a laboratory achievement for now, entanglement could be used to create more precise atomic clocks and more accurate GPS devices, they say, and advance quantum computing.
In entanglement, as physicists explain it, two or more particles are linked such that any change in one will simultaneously cause a change in the other, even if they are far apart, whether by thousands of miles or thousands of light years.
Both classical physics and quantum physics describe such a phenomenon, once famously put down by Albert Einstein, as “spooky action at a distance.”
However, it has been proven that particles at the nanoscale do in fact behave differently that what is observed at larger scales.
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