Table 2.

Experimental values of all the observables on states $∣C_{b,6}⟩$ and $∣C_{c,6}⟩$, respectively, for entanglement witness $\mathcal{W}$ measurement. Each experimental value corresponds to the mean value obtained over 8192 measurements of 10 times and the error bars are obtained by Poissonian counting statistics.

$∣{\mathbf{C}}_{\mathbf{b},\mathbf{6}}⟩$		$∣{\mathbf{C}}_{\mathbf{c},\mathbf{6}}⟩$
Observable	Value	Observable	Value
XZZIII	0.0050 ± 0.0002	XZIIII	0.0811 ± 0.0010
ZXZIII	0.0020 ± 0.0002	ZXZIII	− 0.037
ZIXZZI	0.0018 ± 0.0001	IZXZII	0.0139 ± 0.0004
IZZXIZ	− 0.087	IIZXZI	0.0193 ± 0.0005
IIZIXZ	− 0.03	IIIZXZ	0.3049 ± 0.0016
IIIZZX	− 0.017	IIIIZX	0.4951 ± 0.0017