Corpus ID: 62827728

The time-reverse of any causal theory is eternal noise

  title={The time-reverse of any causal theory is eternal noise},
  author={B. Coecke and Stefano Gogioso and John H Selby},
  journal={arXiv: Quantum Physics},
We consider a very general class of theories, process theories, which capture the underlying structure common to most theories of physics as we understand them today (be they established, toy or speculative theories). Amongst these theories, we will be focusing on those which are `causal', in the sense that they are intrinsically compatible with the causal structure of space-time -- as required by relativity. We demonstrate that there is a sharp contrast between these theories and the… Expand
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