2019/07/23 by Matsuo Sato, Sato, Matsuo
Computer Science · Mathematics · Physics and Astronomy · #Bayesian Modeling and Causal Inference #FOS: Physical sciences #General Physics (physics.gen-ph) #Probability and Statistical Research #Statistical Mechanics and Entropy #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1907.13437
11 pages
arxiv created 2019/07/23 · openalex publication_date 2019/07/23 · arxiv updated 2019/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We formulate a quantum theory of the Universe based on Bayesian probability. In this theory, the probability of the Universe is not a frequency probability, which can be obtained by observing experimental results several times, but is a Bayesian probability, which can define a probability of an event that occurs just once. As an example, by applying the quantum theory of the Universe to an action of a scalar field theory in the four dimensions as a toy model for the theory of the Universe, we explicitly obtain the probability of the Universe and the action of matters in the Universe.