Projection hypothesis from the von Neumann-type interaction with a Bose-Einstein condensate

@article{Konishi2021ProjectionHF,
  title={Projection hypothesis from the von Neumann-type interaction with a Bose-Einstein condensate},
  author={Eiji Konishi},
  journal={Europhysics Letters},
  year={2021},
  volume={136}
}
  • E. Konishi
  • Published 3 December 2020
  • Physics
  • Europhysics Letters
We derive the projection hypothesis in projective quantum measurement by restricting the set of observables. This projection hypothesis accompanies a bipartite system with the von Neumann-type interaction, which consists of a quantum mechanical system, with a meter variable to be measured, and a quantum field theoretically macroscopic extended object, that is, a spatiotemporally inhomogeneous Bose-Einstein condensate in quantum field theory with the quantum coordinate, that is, the zero-energy… 

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