No Fine Theorem for Macrorealism: Limitations of the Leggett-Garg Inequality.

  title={No Fine Theorem for Macrorealism: Limitations of the Leggett-Garg Inequality.},
  author={Lucas Clemente and Johannes Kofler},
  journal={Physical review letters},
  volume={116 15},
Tests of local realism and macrorealism have historically been discussed in very similar terms: Leggett-Garg inequalities follow Bell inequalities as necessary conditions for classical behavior. Here, we compare the probability polytopes spanned by all measurable probability distributions for both scenarios and show that their structure differs strongly between spatially and temporally separated measurements. We arrive at the conclusion that, in contrast to tests of local realism where Bell… 

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