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It may tum out that, like certain other phenomena studied by sociologists, bouts of interest in the foundations of quantum mechanics tend to come in 60-year cycles. It is hardly surprising that in the first decade or so of the subject the conceptual puzzles generated by this strange new way of looking at the world should have generated profound interest, not just among professional physicists themselves but also among philosophers and informed laymen; but this intense interest was followed by a fallow period in the forties and fifties when the physics establishment by and large took the view that the only puzzles left were the product either of incompetent application of the formalism or of bad philosophy, and only a few brave individualists like the late David Bohm dared to suggest that maybe there really was something there after all to worry about. As Bell and Nauenberg, surveying the scene in 1966, put it: "The typical physicist feels that [these questions 1 have long ago been answered, and that he will fully understand how if ever he can spare twenty minutes to think about it. " But gradually, through the sixties and seventies, curiosity did revive, and the last ten years or so have seen a level of interest in foundational questions, and an involvement in them by some of the leading figures of contemporary physics, which is probably unparalleled since the earliest days.

Einstein’s Struggles with Quantum Theory: A Re-Appraisal, presents an account of all aspects of Einstein’s encounter with quantum theory. Until recently it was accepted that, after important early work, Einstein was simply unable to follow Niels Bohr’s approach to quantum theory, and that Einstein’s own views, centered on realism, were of no interest. This book follows modern scholarship arguing that Einstein’s arguments were well constructed, in the Einstein-Bohr debate his position was legitimate, and his pragmatic approach to realism stimulated John Bell and encouraged the emergence of quantum information theory. The book provides a readable account of Einstein’s achievements in quantum theory, his own views, and the progress his work has stimulated since his death. While some chapters use mathematics at an undergraduate physics level, a path is provided for the reader more concerned with ideas than equations, and the book should be of interest to anybody interested in Einstein and his approach to the quantum.

Einstein’s Struggles with Quantum Theory: A Re-Appraisal, presents an account of all aspects of Einstein’s encounter with quantum theory. Until recently it was accepted that, after important early work, Einstein was simply unable to follow Niels Bohr’s approach to quantum theory, and that Einstein’s own views, centered on realism, were of no interest. This book follows modern scholarship arguing that Einstein’s arguments were well constructed, in the Einstein-Bohr debate his position was legitimate, and his pragmatic approach to realism stimulated John Bell and encouraged the emergence of quantum information theory. The book provides a readable account of Einstein’s achievements in quantum theory, his own views, and the progress his work has stimulated since his death. While some chapters use mathematics at an undergraduate physics level, a path is provided for the reader more concerned with ideas than equations, and the book should be of interest to anybody interested in Einstein and his approach to the quantum.