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|a Lloyd, Seth
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|a Massachusetts Institute of Technology. Department of Mechanical Engineering
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|a Lloyd, Seth
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|a Dreyer, Olaf
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|a The universal path integral
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|b Springer US,
|c 2016-06-23T22:08:39Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/103313
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|a Path integrals calculate probabilities by summing over classical configurations of variables such as fields, assigning each configuration a phase equal to the action of that configuration. This paper defines a universal path integral, which sums over all computable structures. This path integral contains as sub-integrals all possible computable path integrals, including those of field theory, the standard model of elementary particles, discrete models of quantum gravity, string theory, etc. The universal path integral possesses a well-defined measure that guarantees its finiteness. The probabilities for events corresponding to sub-integrals can be calculated using the method of decoherent histories. The universal path integral supports a quantum theory of the universe in which the world that we see around us arises out of the interference between all computable structures.
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|a W. M. Keck Foundation Center for Extreme Quantum Information Theory
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|a United States. Defense Advanced Research Projects Agency
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|a United States. Army Research Office. Multidisciplinary University Research Initiative
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|a National Science Foundation (U.S.)
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|a MIT Energy Initiative
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|a Eni S.p.A. (Firm)
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|a Lockheed Martin
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|a Foundational Questions Institute (FQXi)
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|a Jeffrey Epstein
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|a en
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|a Article
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|t Quantum Information Processing
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