Insolubility from No-Signalling

Guido Bacciagaluppi

Research output: Contribution to journalArticle

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Abstract

This paper improves on the result in my [1], showing that within the framework of the unitary Schroedinger equation it is impossible to reproduce the phenomenological description of quantum mechanical measurements (in particular the collapse of the state of the measured system) by assuming a suitable mixed initial state of the apparatus. The result follows directly from the no-signalling theorem applied to the entangled state of measured system and ancilla. As opposed to many other 'insolubility theorems' for the measurement problem of quantum mechanics, it focuses on the impossibility of reproducing the phenomenological collapse of the state of the measured system.
Original languageEnglish
Pages (from-to)3465-3474
Number of pages10
JournalInternational Journal of Theoretical Physics
Volume53
Issue number10
Early online date21 Nov 2013
DOIs
Publication statusPublished - Oct 2014

Keywords

  • measurement problem
  • insolubility
  • no-signalling
  • Von Neumann

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