Preprint
Jul 2026
Device-Independent Self-Testing of the Three-Qubit CCZ Hypergraph State
The three-qubit CCZ state is the smallest rank-three hypergraph state and an elementary entangled magic resource. Its cubic phase is governed by generalized stabilizers that are not Pauli strings, so standard graph-state self-testing arguments do not apply directly. We show that twenty correlators, all obtainable from...
Yunguang Han, Xin Kuang, Xingyuan Bu et al.
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