NMR and relative quantum theory.
Assumptions on which NMR dynamical studies have been based for nearly 50 years are consistent with a relative quantum theory based on Minkowski spacetime. A symmetry condition required by the existence of reference frames takes over the usual role of particle permutation symmetry, leaving a quantum theory of relative motion which only involves observables.
Clough
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Department of Physics, University of Nottingham, UK.
D049673:History, 20th Century; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000266:history; D011789:Quantum Theory