“Quantum Physics and Philosophical Problems”; Some Notes on a Paper by V. Fock Forty Years After His Death
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Some observations are presented on the well-known article by Vladimir Fock, "Quantum Physics and Philosophical Problems," published in 1971. In this article, which crowns and summarizes for Western readers a long and complicated reflection on the foundations of quantum mechanics (QM), Fock illustrates his "minimal" interpretation of this theory. By minimal we mean that it only uses concepts related to the operational aspects of the measurement procedures, avoiding any mention to definite quantum onthologies (Bell's beables). It is argued that, by taking into account the time reversal invariance of the microscopic processes and introducing the notion of irreversibility in an appropriate manner, Fock's description becomes an anticipation of the "transaction" notion introduced by Cramer a decade later.