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What's Wrong with these Observables?

Quantum Physics 2022-10-12 v1

Abstract

An imprecise measurement of a dynamical variable (such as a spin component) does not, in general, give the value of another dynamical variable (such as a spin component along a slightly different direction). The result of the measurement cannot be interpreted as the value of any observable that has a classical analogue.

Cite

@article{arxiv.quant-ph/0207020,
  title  = {What's Wrong with these Observables?},
  author = {Asher Peres},
  journal= {arXiv preprint arXiv:quant-ph/0207020},
  year   = {2022}
}

Comments

submitted to Foundations of Physics