Uncomfortable bedfellows: Objective quantum Bayesianism and the von Neumann-Lüders projection postulate

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Abstract

In this paper I critically evaluate the justification of the von Neumann-Lüders projection postulate for state changes in projective measurement contexts from the objective quantum Bayesian perspective. I point out that the justification provided so far for the von Neumann-Lüders projection postulate is insufficient. I argue that the best way to correct this problem is to make an assumption, Benign Realism, which is contradictory to the objective quantum Bayesian interpretation of quantum states.

Original languageEnglish
Pages (from-to)167-175
Number of pages9
JournalStudies in History and Philosophy of Science Part B - Studies in History and Philosophy of Modern Physics
Volume42
Issue number3
DOIs
StatePublished - Aug 2011

Keywords

  • Projection postulate
  • Quantum Bayesian
  • Quantum gambles
  • Quantum information
  • Quantum probability

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