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 computing, encryption, and our deepest understanding of the universe. However, recently, researchers in China have pulled off something that sounds almost impossible. They passed one of the toughest tests …
Read More »Photons pass famous Bell test but without entanglement, shows study
