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232:. He studied various topics, such as the time reversal of quantum mechanics, pattern recognition, cognitive science, and the concept of time. He was the first physicist who claimed that quantum probability theory is time-asymmetric (irreversible; non-invariant under time reversal), and reject the conventional analysis of the time reversal of probability laws. He developed the Double Inferential Vector Formalism (DIVF), later known as the
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336:). However Watanabe considered that the normal physical theory of quantum mechanics that holds for real physics is time-asymmetric. He consequently rejected the conventional view that physical time asymmetry is only explained by asymmetric boundary conditions on the universe, and claimed it is a law-like feature of quantum physics.
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reversal, and the claims that quantum mechanics is time reversal invariant are invalid. Watanabe's argument has not been accepted by physicists or philosophers however. The assumption that quantum mechanics is time symmetric on the basis of conventional proofs is almost universal in the literature on time in physics to this day.
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is not complete; rather, both forwards and backwards evolving quantum states are required to describe a quantum state: a first state vector that evolves from the initial conditions towards the future, and a second state vector that evolves backwards in time from future boundary conditions. Past and
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His father, Chifuyu
Watanabe, was a Minister of Justice at Second Wakatsuki Cabinet. His elder brother, Takeshi Watanabe, was Vice Minister of Finance for International Affairs and director general of Asia Development Bank. His wife, Dorothea Dauer Watanabe, was a professor of German (language and
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His argument that quantum mechanics is time-asymmetric (irreversible; non-invariant under the time reversal transformation) is repeated in a number of his papers (1955; 1965; 1966; 1972). This result means that physicists have used the wrong transformation of probability laws to represent time
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In 1956, he became a researcher at the IBM Watson
Laboratory and started to build his own information theory based on quantum mechanics. He taught at Yale University and the
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future measurements, taken together, provide complete information about a quantum system. Watanabe's work was later rediscovered by
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Watanabe, Satosi. "Symmetry of physical laws. Part III. Prediction and retrodiction." Reviews of Modern
Physics 27.2 (1955): 179.
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in 1921, and later by several other scientists. Watanabe proposed that information given by forwards evolving
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literature) at the
University of Hawaii. His son, Hajime Watanabe, is a professor of philosophy at the
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Satosi
Watanabe (1965). "Une Explication Mathématique du Classement d'Objets". In Stanislas I. Dockx;
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He developed the Double
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Knowing and guessing : a quantitative study of inference and information
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Time-symmetric interpretations of quantum mechanics were first suggested by
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Knowing and
Guessing: A Quantitative Study of Inference and Information
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Le deuxième théorème de la thermodynamique et la mécanique ondulatoire
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In Japan, he worked at the
Physical and Chemical Research Institute (
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for a time. In
December, he returned to Japan with his family.
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The imperial government sent him to France to study.
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Potentiality, Entanglement and
Passion-At-A-Distance
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650:Pattern recognition : human and mechanical
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652:, New York : John Wiley & Sons, 1985
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334:Minority interpretations of quantum mechanics
252:Satosi Watanabe was born on May 26, 1910, in
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600:Protective measurements of two-state vectors
286:and started to study nuclear theory under
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109:Learn how and when to remove this message
724:Fellows of the American Physical Society
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389:University of California, Santa Barbara
378:On October 15, 1993, he died in Tokyo.
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458:Information and Prediction in Science
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47:adding citations to reliable sources
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288:Heisenberg
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