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Following on from his bestseller, Schrödinger's Cat, John Gribbin presents the recent dramatic improvements in experimental techniques that have enabled physicists to formulate and test new theories about the nature of light. He describes these theories not in terms of hard-to-imagine entities like spinning subnuclear particles, but in terms of the fate of two small cats, separated at a tender age and carried to opposite ends of the universe. In this way Gribbin introduces the reader to such new developments as quantum cryptography, through which unbreakable codes can be made, and goes on to possible future developments such as the idea that the 'entanglement' of quantum particles could be a way to build a Star Trek style teleportation machine.
John Gribbin has a Ph.D in Astrophysics from the University of Cambridge and is now Visiting Fellow at the University of Sussex. His books have been translated into many languages and have won awards both in Britain and the United States. He is a consultant to the New Scientist.