A Quintet of Quandaries: Five No-Go Theorems for Relational Quantum Mechanics

  title={A Quintet of Quandaries: Five No-Go Theorems for Relational Quantum Mechanics},
  author={Jacques L. Pienaar},
  journal={Foundations of Physics},
  • J. Pienaar
  • Published 1 July 2021
  • Philosophy
  • Foundations of Physics
Relational quantum mechanics (RQM) proposes an ontology of relations between physical systems, where any system can serve as an ‘observer’ and any physical interaction between systems counts as a ‘measurement’. Quantities take unique values spontaneously in these interactions, and the occurrence of such ‘quantum events’ is strictly relative to the observing system, making them ‘relative facts’. The quantum state represents the objective information that one system has about another by virtue of… 

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