Volume 86, Number 2, April 2009
|Number of page(s)||6|
|Published online||06 May 2009|
The ESR model: A proposal for a noncontextual and local Hilbert space extension of QM
Università del Salento, Dipartimento di Fisica and INFN - Via Arnesano, 73100 Lecce, Italy, EU
Accepted: 1 April 2009
The extended semantic realism (ESR) model proposes a new theoretical perspective that embodies the mathematical formalism of standard (Hilbert space) quantum mechanics (QM) in a noncontextual framework, reinterpreting quantum probabilities as conditional instead of absolute. We provide here a Hilbert space representation of the generalized observables introduced by the ESR model. By using this representation, we supply a straightforward generalization of the projection postulate and justify it in the case of discrete generalized observables by introducing a reasonable physical assumption on the evolution of the compound system made up of the (microscopic) measured system and the (macroscopic) measuring apparatus.
PACS: 03.65.-w – Quantum mechanics / 03.65.Ca – Formalism / 03.65.Ta – Foundations of quantum mechanics; measurement theory
© EPLA, 2009
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