• Corpus ID: 119436353

A Model of Classical and Quantum Measurement

@article{Francis1999AMO,
  title={A Model of Classical and Quantum Measurement},
  author={Charles Francis},
  journal={arXiv: General Physics},
  year={1999}
}

• C. Francis
• Published 23 September 1999
• Physics
• arXiv: General Physics

We take the view that physical quantities are values generated by processes in measurement, not pre-existent objective quantities, and that a measurement result is strictly a product of the apparatus and the subject of the measurement. We habitually make an inaccurate statements when we speak of the measurement of a quantity by an apparatus. These statements can be formalised as a many valued logic with the structure of a vector space with a hermitian form in such a way as to generate probabilities in the results of measurement. The difference between this and classical probability theory is that we are not finding probabilities generated by unknown variables, but probabilities generated by unknown structure. We thus interpret quantum logic as the application of complex truth values to statements in an inaccurate language, and find that the properties of vector space hold for approximate measurement as well as for measurement of optimal accuracy, suggesting that Planck's constant governs the scale of the fundamental structures of matter.