In quantum mechanics, the measurement problem considers how, or whether, wave function collapse occurs. © 2021 Springer Nature Switzerland AG. J. S. Bell,Rev. A. Wheeler,Rev. Foundations of quantum theory. PubMed Google Scholar, Zeh, H.D. Tax calculation will be finalised during checkout. (2) The process of measurement is not describable within the framework of the theory. 88, 101 (1952); E. P. Wigner and M. M. Yanase,Proc. : Brown Univ., Providence Sponsoring Org. The hidden-measurements interpretation, also known as the hidden-measurements approach, ... Landé turned energetically against the Copenhagen interpretation of quantum theory, requiring, as did Einstein, an objectively real description of physical processes. Experiments with macroscopic devices involve measurement theory, which most physicist agree is the most difficult and least understood part of QM.. Rev. J. Phys. The amazing accuracy in verifying quantum effects experimentally has recently renewed interest in quantum mechanical measurement theory. OF QUANTUM THEORY by John A. Wheeler 151 QUANTUM MECHANICS AND REALITY by Bryce S.DeWitt ,..155 THE MANY-UNIVERSES INTERPRET ATION OF QUANTUM MECHANICS by Bryce S.DeWitt 167 ONTHE INTERPRETATION OF MEASUREMENT WITHIN THE QUANTUM THEORY by Leon N. Cooper and Deborah van Vechten 219 THE MEASUREMENT OFRELATIVE FREQUENCY byNeill Graham 229 PDF. Pages 91-130. The key idea of the many-worlds interpretation is that unitary quantum mechanics describes the whole universe. Acta In a no-collapse approach, measurement is typically modeled as a dynamical process involving decoherence. G. Ludwig,Die Grundlagen der Quantenmechanik (Berlin, 1954), p. 122 ff.;Z. In interpretation of the process of measurement is proposed which can be placed wholly within the quantum theory. The generalized measurement postulate & Pekka J. 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