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We describe a graphical calculus for completely positive maps and in doing so review the theory of open quantum systems and other fundamental primitives of quantum information theory using the language of tensor networks. In particular we demonstrate the construction of tensor networks to pictographically represent the Liouville-superoperator, Choi-matrix,… (More)

- Robert W Spekkens, References, Christopher J Wood, Katja Ried, Megan Agnew, Lydia Vermeyden +2 others
- 2014

The framework of causal models is ideally suited to formalizing certain conceptual problems in quantum theory , and conversely, a variety of tools developed by physicists studying the foundations of quantum theory have applications for causal inference. This talk reviews some of the connections between the two fields. In particular , it is shown that… (More)

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