For decades, entanglement has been the hallmark of quantum weirdness, a ghostly connection between particles that Einstein famously called "spooky action at a distance." It is at the heart of quantum ...

(Phys.org)—A team of researchers working at Delft University in The Netherlands, has perhaps succeeded in closing the two loopholes that have prevented proving that local realism does not hold at the ...

A new technical paper titled “Loophole-free Bell inequality violation with superconducting circuits” was published by a group of researchers led by ETH Zurich.

A group of researchers led by Andreas Wallraff, Professor of Solid State Physics at ETH Zurich, has performed a loophole-free Bell test to disprove the concept of “local causality” formulated by ...