Extended Data Fig. 10: Robust distance measurements.
From: Signal amplification in a solid-state sensor through asymmetric many-body echo
The distances reported in main text Figs. 3, 4 are averaged between the two experiments shown in panel (a) and (b), in order to improve the robustness against systematic errors coming from the (tiny) overlap between the sensing pulse and surrounding Floquet pulses. This strategy works by negating such pulse overlaps, while keeping the engineered Hamiltonian the same. The pulse sequence shown here is slightly different from Fig. 4(a), as the sensing pulse and the subsequent \(\frac{{\rm{\pi }}}{2}\) reversal pulse in Fig. 4(a) are combined into a single pulse (with the same unitary) for simplicity of implementation.
