Fig. 4: Measurement of entanglement witness for hypergraph states.
From: Demonstration of hypergraph-state quantum information processing
Theoretical and experimental values for the decomposed product Pauli operators for the hypergraph state no.11. A collection of in total 256 measurements in the basis of product Pauli operators are performed. The average values for each operator are color coded and the key is provided at the top. The expected witness operator \(\langle \hat{W}\rangle\) is measured to be −0.42 ± 0.1.
