Science
'Spooky Action' Passes a Relativistic Test
Charles Seife
Abstract
QUANTUM MECHANICSThe most unnerving idea in quantum mechanics may be spooky at a distance--the notion that certain particles can affect one another almost instantly across vast reaches of space. Recently in Geneva, that aspect of quantum surreality survived the most cunning trap so far, a series of experiments that pitted it against basic principles of Einstein's relativity. The results gave the most accurate estimate yet of how rapidly the spooky action might operate.