A Note on Penrose’s Spin-Geometry Theorem and the Geometry of ‘Empirical Quantum Angles’

Foundations of Physics 52 (4):1-12 (2022)
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Abstract

In the traditional formalism of quantum mechanics, a simple direct proof of the Spin Geometry Theorem of Penrose is given; and the structure of a model of the ‘space of the quantum directions’, defined in terms of elementary SU-invariant observables of the quantum mechanical systems, is sketched.

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10.1007/s10701-022-00616-3

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Three-Space from Quantum Mechanics.László B. Szabados - 2022 - Foundations of Physics 52 (5):1-34.

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