Table 2.

Self-replication and interaction with the environment in the σ_z basis.

Basis element	0000	0001	0010	0011	0100	0101	0110	0111	1000	1001	1010	1011	1100	1101	1110	1111
Measured events	1491	103	42	224	387	46	31	249	67	91	108	916	149	354	439	3495
Predicted events	1682	66	0	0	288	11	0	0	0	0	34	866	0	0	200	5045

Number of measurements for every element of the four-qubit basis. The experimental values for 〈σ_z〉 are (−0.37, −0.26, −0.34, −0.34) while the ideal values are (−0.5, −0.35, −0.5, −0.46). Notice that the mapping of reordering the qubits has been inverted to achieve the results in the |g₁p₁g₂p₂〉 basis.