Satosi Watanabe
Satosi Watanabe was born in Tokyo, Japan on May 26th, 1910 and is the Japanese Physicist. At the age of 83, Satosi Watanabe biography, profession, age, height, weight, eye color, hair color, build, measurements, education, career, dating/affair, family, news updates, and networth are available.
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In Japan, he worked at the Physical and Chemical Research Institute (Rikagaku Kenkyujo) at Tokyo Imperial University as an assistant professor, and as a physics professor at Rikkyo University. In 1950, he left for the United States.
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 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.
He developed the Double Inferential Vector Formalism (DIVF), later known as the Two-state vector formalism (TSVF). The DSVF/TSVF is often interpreted as a time-symmetric interpretation of quantum mechanics (see Minority interpretations of quantum mechanics). 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.
Time-symmetric interpretations of quantum mechanics were first suggested by Walter Schottky in 1921, and later by several other scientists. Watanabe proposed that information given by forwards evolving quantum states 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 future measurements, taken together, provide complete information about a quantum system. Watanabe's work was later rediscovered by Yakir Aharonov, Peter Bergmann and Joel Lebowitz in 1964, who later renamed it the Two-state vector formalism (TSVF).
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 University of Hawaii, became chairman of the International Time Academy, and was the Vice President of International Philosophy Academy.
On October 15, 1993, he died in Tokyo.