Does the quantum mechanical wave function exist? Cover Image

Does the quantum mechanical wave function exist?
Does the quantum mechanical wave function exist?

Author(s): Claus Kiefer
Subject(s): Metaphysics, Logic, Special Branches of Philosophy, Philosophy of Science
Published by: Copernicus Center Press
Keywords: wave function; quantum mechanics; ontology; quantum formalism; superposition principle; measurement problem; decoherence; quantum gravity

Summary/Abstract: I address the question whether the wave function in quantum theory exists as a real (ontic) quantity or not. For this purpose, I discuss the essentials of the quantum formalism and emphasize the central role of the superposition principle. I then explain the measurement problem and discuss the process of decoherence. Finally, I address the special features that the quantization of gravity brings into the game. From all of this I conclude that the wave function really exists, that is, it is a real (ontic) feature of Nature.

  • Issue Year: 2019
  • Issue No: 66
  • Page Range: 111-128
  • Page Count: 18
  • Language: English