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The part of the Dance of the Photons I liked best is the correct presentation of ???quantum teleportation??? experiments. The book points out that not all the features of the particle are teleported and the teleportation always requires a classical communications channel, and this is not at all a ???beam me up Scotty??? experience. The reality of these experiments is not at all what people assume when they hear scientists have ???teleported??? something. The book tries to explain an exceptionally weird reality in a way a layman might understand. This works for a while, but as things get stranger, the explanations get weaker, and when ???the really exciting point of the whole story??? is reached the explanation is the least clear. Thus the book fails in the essential goal of being really understandable to laymen (which may be an unattainable goal). Even an author as capable as Zellinger can still make mistakes, as in the opening discussion of entanglement the book implies that when a speed measurement is made on the local entangled particle A, at that very moment, but not before, the distant particle B takes on a corresponding speed. Yet in general there is actually no way to tell if the measurement of A, or the measurement of B, happened first. This is an all too common misunderstanding, and surely Zellinger knows better, but such statements lead to deep misunderstandings in laymen (and physicists) about what is really going on. In QM one cannot make a statement about the speed of B until the speed of B is measured. When the speed of B is measured, it will always correspond with the speed measured of A, but that does not mean B had that speed before B was measured. Without understanding this, nothing can be understood about QM and entanglement. I was hoping to find a book I could recommend to laymen to understand the key issues of Bell???s theorem. The author is brilliant and tries really hard to reach this goal, but unfortunately this book falls far short of what I had hoped. Nevertheless, for those who want to understand entanglement this book is no worse than any, and better than most. BTW, if you read this book and believe you now finally understand entanglement, you are very likely deluding yourself! Keep reading and you will be confused again!
11 of 11 people found this review helpful
Delves into the science of entanglement and the most important theorem you've probably never heard of, Bells Theorem. Spooky action at a distance is real and does exist. He tells a good story and explains the science wonderfully. Slightly prefer this over "How the Hippies Saved Physics" only because this book talks more about the science and the other book has more about the personalities. I recommend both, but if you prefer the science over personality choose this book.
2 of 2 people found this review helpful