Fig. 3: Comparison of the estimation errors of the LBCS and CS measurement schemes for the measurement of the initialization state for the S0 Hamiltonian in the various system sizes. | npj Quantum Information

Fig. 3: Comparison of the estimation errors of the LBCS and CS measurement schemes for the measurement of the initialization state for the S0 Hamiltonian in the various system sizes.

From: Practical techniques for high-precision measurements on near-term quantum hardware and applications in molecular energy estimation

Fig. 3: Comparison of the estimation errors of the LBCS and CS measurement schemes for the measurement of the initialization state for the S0 Hamiltonian in the various system sizes.

The plot shows the absolute and standard errors (1σ) of both the LBCS and CS measurement schemes with parallel QDT. The absolute error is computed as the absolute difference to the noiseless value of the initialization energy. The standard error is computed using the expression for the variance for repeated settings in Eq. (6).

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