No-signalling constrains quantum computation with indefinite causal structure
Quantum processes with indefinite causal structure emerge when we wonder which are the most general evolutions, allowed by quantum theory, of a set of local systems which are not assumed to be in any particular causal order. These processes can be described within the framework of $higher-order$ qua...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2024-02-01
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Series: | Quantum |
Online Access: | https://quantum-journal.org/papers/q-2024-02-05-1241/pdf/ |