Experimental approaches to the quantum measurement paradox

@article{Leggett1988ExperimentalAT,
  title={Experimental approaches to the quantum measurement paradox},
  author={Anthony J. Leggett},
  journal={Foundations of Physics},
  year={1988},
  volume={18},
  pages={939-952}
}
I examine the question of how far experiments that look for the effects of superposition of macroscopically distinct states are relevant to the classic measurement paradox of quantum mechanics. Existing experiments on superconducting devices confirm the predictions of the quantum formalism extrapolated to the macroscopic level, and to that extent provide strong circumstantial evidence for its validity at this level, but do not directly test the principle of superposition of macrostates. A more… CONTINUE READING

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