Physics – General Physics
Scientific paper
2010-09-15
Physics
General Physics
7 pages
Scientific paper
Which physical observable is a primary entity in the quantum world? Probabilities, or amplitudes of probability? With which of them the nature works? In classical phenomena of interference the nature operates with the amplitudes of the waves, adding them according to their phases. The intensity of the resulting interference pattern is a by-product, a secondary entity equal to the absolute square of the sum of amplitudes of the interfering waves. A similar behavior appears in two (or more) particle interferometry. There exist two-particle (or multi-particle) waves. The nature adds the amplitudes of these waves according to their phases, then the probability of one or another outcome of the experiment is the absolute square of the obtained sum of amplitudes. Two-particle (or multi-particle) waves are non-local entities, because the particles usually fly apart from one another, s.t. no wonder that the quantum world is non-local. But there are also claims against the realism, i.e. that results of measurements are not a consequence of some physical parameters that exist before measurements. To challenge these claims a non-local model for entanglements is proposed, being based on the full/empty waves hypothesis, i.e. on realism. This model bears some resemblance with Leggett's model, however, it predicts for experiments with the polarization singlet the same predictions as the quantum theory. Though, difficult questions appear when confronting this model with the relativity, i.e. using it together with frames of coordinates in relative movement. For answering such questions, experiments that mimic moving frames are necessary. Such experiments are available, but they are non-contextual, and their results non-conclusive. Contextual experiments that mimic moving frames are necessary.
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