Physics – Quantum Physics
Scientific paper
1996-06-17
Phys.Essays 9 (1996) 36-95; Erratum-ibid. 9 (1996) 354
Physics
Quantum Physics
Plain TEX, 118 pages, 288 references, 6 figures and 2 tables, which may also be obtained via air mail
Scientific paper
We expound an alternative to the Copenhagen interpretation of the formalism of nonrelativistic quantum mechanics. The basic difference is that the new interpretation is formulated in the language of epistemological realism. It involves a change in some basic physical concepts. The $\psi $ function is no longer interpreted as a probability amplitude of the observed behavior of an elementary particle but as an objective physical field representing the particle itself. The particles are thus extended objects whose extension varies in time according to the variation of $\psi $. They are considered as fundamental regions of space with no internal structure. This implies some kind of nonlocality. Symmetrization of the configuration space wave function is interpreted as a mathematical description of a physical process, which also leads to nonlocal effects. Special consideration is given to the problem of measurement, the reduction process, Schr\"odinger's cat, Wigner's friend, the Einstein-Podolsky-Rosen correlations, field quantization and quantum-statistical distributions. Experiments to distinguish the proposed interpretation from the Copenhagen interpretation are pointed out.
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