The ESR model: a local and non-contextual extension of quantum mechanics.
Journal title EPISTEMOLOGIA
Author/s Claudio Garola
Publishing Year 2012 Issue 2012/2 Language Italian
Pages 18 P. 281-298 File size 632 KB
DOI 10.3280/EPIS2012-002008
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According to the standard interpretation of quantum mechanics the properties of a microscopic physical system cannot be considered either possessed or not possessed by the system before a measurement (non-objectivity). The outcome of a measurement depends indeed on the whole set of compatible measurements that are simultaneously performed (contextuality, non-locality). Nevertheless non-objectivity has problematical consequences. The ESR model recovers objectivity (hence locality and non-contextuality) by embodying and extending the mathematical formalism of quantum mechanics, and reinterpreting quantum probabilities as conditional on detection rather than absolute. Quantum probabilities then admit an epistemic interpretation, it is possible to supply a consistent theory of measurement, a more intuitive description of the microscopic world is obtained and a classical notion of truth can be adopted. Because of these features the ESR model (which is falsifiable) is compatible with several realistic philosophical positions.
Keywords: Quantum mechanics, contextuality, locality, quantum logic, semantic realism, ESR model.
Claudio Garola, Il modello ESR: un’estensione locale e non-contestuale della meccanica quantistica in "EPISTEMOLOGIA" 2/2012, pp 281-298, DOI: 10.3280/EPIS2012-002008