"This book explores the implications for physics and philosophy of a strange new fact of nature: that particles can be "entangled" over enormous distances, and that measurements made on such entangled particles in one place can have an instantaneous effect in another. Such interactions seem to (but actually do not, as the authors show) violate the principle that nothing can move faster than the speed of light, which is why Einstein called them "spooky interactions at a distance.""--BOOK JACKET. "The authors provide the necessary background to understand these "nonlocal" interactions, and explain the experiments that confirmed their existence."--BOOK JACKET.