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Existence and nonexistence of commutativity gadgets for entangled CSPs

Culf, Eric et al.
arXiv (All) · Papers
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computational-complexityoperator-algebrasquantum-physics
Commutativity gadgets allow NP-hardness proofs for classical constraint satisfaction problems (CSPs) to be carried over to undecidability proofs for the corresponding entangled CSPs. This has been done, for instance, for NP-complete boolean CSPs and 3-colouring in the work of Culf and Mastel. For ma
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