A landmark book on the influential many-worlds interpretation of quantum mechanics
In 1957, Hugh Everett proposed a novel interpretation of quantum mechanics--a view that eventually became known as the many-worlds interpretation. This book presents Everett’s two landmark papers on the idea--＂’Relative State’ Formulation of Quantum Mechanics＂ and ＂The Theory of the Universal Wave Function＂--as well as further discussion of the idea in papers from a number of other physicists: J. A. Wheeler, Bryce DeWitt, L. N. Cooper and D. Van Vechten, and Neill Graham.
In his interpretation, Everett denies the existence of a separate classical realm and asserts the propriety of considering a state vector for the whole universe. Because this state vector never collapses, reality as a whole is rigorously deterministic. This reality, which is described jointly by the dynamical variables and the state vector, isn’t the reality customarily perceived; rather, it’s a reality composed of many worlds. By virtue of the temporal development of the dynamical variables, the state vector decomposes naturally into orthogonal vectors, reflecting a continual splitting of the universe into a multitude of mutually unobservable but equally real worlds, in each of which every good measurement has yielded a definite result, and in most of which the familiar statistical quantum laws hold.
Bryce S. DeWitt (1923-2004) was a prize-winning theoretical physicist and professor emeritus of physics at the University of Texas at Austin.
Neill Graham (1941-2015) was a physicist and writer.
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