Density cubes and higher-order interference theories

@article{Dakic2014DensityCA,
  title={Density cubes and higher-order interference theories},
  author={B. Daki'c and T. Paterek and {\vC}. Brukner},
  journal={New Journal of Physics},
  year={2014},
  volume={16},
  pages={023028}
}
  • B. Daki'c, T. Paterek, Č. Brukner
  • Published 2014
  • Physics
  • New Journal of Physics
  • Can quantum theory be seen as a special case of a more general probabilistic theory, as classical theory is a special case of the quantum one? We study here the class of generalized probabilistic theories defined by the order of interference they exhibit as proposed by Sorkin. A simple operational argument shows that the theories require higher-order tensors as a representation of physical states. For the third-order interference we derive an explicit theory of ‘density cubes’ and show that… CONTINUE READING
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