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  1. C. W. Rietdijk (1987). Retroactive Effects From Measurements. Foundations of Physics 17 (3):297-311.
    We consider several thought and practical experiments, and variations thereof, from which the existence can be inferred of retroactive effects on the assumptions of conservation of linear and angular momentum and of realism defined in a wide sense. Such conclusion is made less counterintuitive by research into the proper physical background of the relativistic length contraction of a moving arrow, viz. the fact that the universe is four-dimensional indeed. In one of the experiments considered, the evidence of retroactivity is more (...)
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  2. C. W. Rietdijk & F. Selleri (1985). Proof of a Quantum Mechanical Nonlocal Influence. Foundations of Physics 15 (3):303-317.
    First it is proved that, in a deterministic theory, Malus' law requires that, if a photon is successively transmitted by two polarizers with appropriately chosen settings, the first transmission influences a hidden variable (co-) determining the second one. We derive from this that in an ideal EPR experiment (giving the result predicted by quantum mechanics for two correlated photons transmitted by two polarizers with suitably chosen settings) there has to be a nonlocal influence from the “first” transmission interaction to the (...)
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  3. C. W. Rietdijk (1981). Another Proof That the Future Can Influence the Present. Foundations of Physics 11 (9-10):783-790.
    A modified Young double-slit experiment proposed by Wootters and Zurek is considered in which a system P of parallel plates covered with a photographic emulsion has been set up in the region where we would normally expect the central interference fringes. Because under certain conditions P makes it possible to conclude with much more than50% certainty through which of the two slits each particular photon passed, the relevant interference pattern becomes blurred. It is proved that this implies a retroactive effect (...)
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  4. C. W. Rietdijk (1980). A Microrealistic Explanation of Fundamental Quantum Phenomena. Foundations of Physics 10 (5-6):403-457.
    We abandon as redundant the assumption that there exists something more in the physical world than action quanta, which constitute the atoms of the events of which the four-dimensional world consists. We derive metric, energy, matter, etc., from action and the structure formed by the quanta. In the microworld thequantization of space so introduced implies deviations from conventional metrics that make it possible in particular to explain nonlocality. The uncertainty relations, then, in conjunction with the action-based metric, appear to play (...)
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  5. C. W. Rietdijk (1978). Proof of a Retroactive Influence. Foundations of Physics 8 (7-8):615-628.
    Quantum theory predicts that, e.g., in a Stern-Gerlach experiment with electrons the measured spin component $S_Z = \pm \frac{1}{2}$ does not come about by an adjustment at the last moment, a forced “flipping” or “tilting” of the spin (vector), which would imply z-angular momentum exchange between particle and instrument, but will afterward appear to have had the value $\frac{1}{2} or - \frac{1}{2}$ already before the measurement. Because an electron spin cannot have components $ \pm \frac{1}{2}$ in all directions at the (...)
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  6. C. W. Rietdijk (1977). How Do “Virtual” Photons and Mesons Transmit Forces Between Charged Particles and Nucleons? Foundations of Physics 7 (5-6):351-374.
    Examining the process of action at a distance, we arrive at the following conclusions: (a) The virtual photons and mesons transmitting Coulomb and nuclear forces, respectively, do not arise from “temporary violations of energy conservation,” but, on the contrary, exactly embody the potential energy corresponding to the relevant forceF that they transmit on their collision with the charged particles or nucleons via the formula Δp=FΔt. (b) In the case of an attractive force, the energy of these photons and mesons is (...)
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  7. C. W. Rietdijk (1976). Special Relativity and Determinism. Philosophy of Science 43 (4):598-609.
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  8. C. W. Rietdijk (1966). A Rigorous Proof of Determinism Derived From the Special Theory of Relativity. Philosophy of Science 33 (4):341-344.
    A proof is given that there does not exist an event, that is not already in the past for some possible distant observer at the (our) moment that the latter is "now" for us. Such event is as "legally" past for that distant observer as is the moment five minutes ago on the sun for us (irrespective of the circumstance that the light of the sun cannot reach us in a period of five minutes). Only an extreme positivism: "that which (...)
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