Table 1. Experimental fidelities measured for all 18 qusix hybrid states that characterize the three chosen MUBs.

Basis	State	Fidelity
I	|H〉 |+1〉	0.986 ± 0.002
	|H〉 |0〉	0.982 ± 0.002
	|H〉 |−1〉	0.986 ± 0.002
	|V〉 |+1〉	0.988 ± 0.002
	|V〉 |0〉	0.980 ± 0.002
	|V〉 |−1〉	0.983 ± 0.002
II	|A〉 |α1〉	0.989 ± 0.001
	|A〉 |α2〉	0.981 ± 0.002
	|A〉 |α3〉	0.986 ± 0.002
	|D〉 |α1〉	0.989 ± 0.001
	|D〉 |α2〉	0.982 ± 0.002
	|D〉 |α3〉	0.980 ± 0.002
III	|L〉 |β1〉	0.981 ± 0.002
	|L〉 |β2〉	0.981 ± 0.002
	|L〉 |β3〉	0.979 ± 0.002
	|R〉 |β1〉	0.977 ± 0.002
	|R〉 |β2〉	0.972 ± 0.002
	|R〉 |β3〉	0.970 ± 0.002
	Average Fidelity	0.9851 ± 0.0004