References
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P. V. Landshoff andH. D. Stapp:Ann. of Phys.,43, 72 (1967);J. B. Hartle andJ. R. Taylor:Phys. Rev.,178, 2043 (1968);M. E. Arons:Lett. Nuovo Cimento,1, 911 (1969).
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Note that (9) does not hold if thee i j cannot be chosen such that (8) is satisfied. A careful analysis reveals that the generalized rays are not the intrinsic characteristic of the theory (seeThien Vo-Dai: Université de Montréal preprint or McMaster University Ph. D. Thesis (1972)).
This line of reasoning can easily be extended toN-particle systems (seeThien Vo-Dai in the reference cited above).
One could argue that, to formulate a physical theory, one should knowa priori what are the physical observables and determine the states consistently with the required symmetry. It is possible to abandon the IP while still satisfying the indistinguishability of identical particles by choosing the permutation-invariant density matrix to represent the states (see the references cited in footnote (5)) Note that (9) does not hold if thee i j cannot be chosen such that (8) is satisfied. A careful analysis reveals that the generalized rays are not the intrinsic characteristic of the theory (seeThien Vo-Dai: Université de Montréal preprint or McMaster University Ph. D. Thesis (1972)).
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Supported by the National Research Council of Canada and the Ministère de l’Education du Gouvernement du Québec.
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Vo-Dai, T. Parastatistics and cluster property. Lett. Nuovo Cimento 7, 108–112 (1973). https://doi.org/10.1007/BF02727610
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DOI: https://doi.org/10.1007/BF02727610