Quantum Afterlife; February 2009; Scientific American Magazine; by Charles Q. Choi; 2 Page(s)
¿Spooky action at a distance¿ is how Albert Einstein famously derided the concept of quantum entanglement¿where objects can become linked and instantaneously influence one another regardless of distance. Now researchers suggest that this spooky action in a way might work even beyond the grave, with its effects felt after the link between objects is broken.
In experiments with quantum entanglement, which is an essential basis for quantum computing and cryptography, physicists rely on pairs of photons. Measuring one of an entangled pair immediately affects its counterpart, no matter how far apart they are theoretically. The current record distance is 144 kilometers, from La Palma to Tenerife in the Canary Islands.