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16 April 2024
 
  » arxiv » quant-ph/0106131

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A Quantum Structure Description of the Liar Paradox
Diederik Aerts ; Jan Broekaert ; Sonja Smets ;
Date 24 Jun 2001
Journal International Journal of Theoretical Physics, 38, 3231-3239, 1999
Subject quant-ph
AbstractIn this article we propose an approach that models the truth behavior of cognitive entities (i.e. sets of connected propositions) by taking into account in a very explicit way the possible influence of the cognitive person (the one that interacts with the considered cognitive entity). Hereby we specifically apply the mathematical formalism of quantum mechanics because of the fact that this formalism allows the description of real contextual influences, i.e. the influence of the measuring apparatus on the physical entity. We concentrated on the typical situation of the liar paradox and have shown that (1) the truth-false state of this liar paradox can be represented by a quantum vector of the non-product type in a finite dimensional complex Hilbert space and the different cognitive interactions by the actions of the corresponding quantum projections, (2) the typical oscillations between false and truth - the paradox -is now quantum dynamically described by a Schrodinger equation. We analyse possible philosophical implications of this result.
Source arXiv, quant-ph/0106131
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