A quintet of quandaries: five no-go theorems for Relational Quantum
Mechanics
- URL: http://arxiv.org/abs/2107.00670v2
- Date: Wed, 1 Sep 2021 21:57:39 GMT
- Title: A quintet of quandaries: five no-go theorems for Relational Quantum
Mechanics
- Authors: Jacques L. Pienaar
- Abstract summary: RQM strives to uphold the completeness and universality of quantum theory.
Here we present five nogos that imply it cannot; something has to give way.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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 correlations between their physical variables.
The ontology of RQM thereby strives to uphold the universality and completeness
of quantum theory, while at the same time maintaining that the actualization of
each unique quantum event is a fundamental physical event. Can RQM sustain this
precarious balancing act? Here we present five no-go theorems that imply it
cannot; something has to give way.
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