Quantum-enhanced multiparameter sensing in a single mode
Fig. 2, panel (b)
Multiparameter variance $V(\epsilon_x) + V(\epsilon_p)$ of grid states against mean phonon number $\langle \hat{n} \rangle$ (log-log): measured variances (circles) with one-SD error bars and shaded band, the expected grid-state variance (red dashed), the squeezed state (purple dashed), SQL$^*$ (black dashed) and LB$^*$ (black). The grey shading below LB$^*$ and the (i)-(iii) arrows are not drawn.
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- Data: data.csv
Provenance
This panel was reproduced from the authors' public data deposit (Zenodo: https://doi.org/10.5281/zenodo.14512033, CC BY 4.0), with the expected grid-state, squeezed-state and lower-bound curves and the SQL line recovered from the published vector figure. The plot shown here is re-rendered for interactive viewing and analysis. See the paper for the original figure and full scientific context.
License: CC BY-NC 4.0.
Sci. Adv. 11, eadw9757 (2025) · DOI: 10.1126/sciadv.adw9757 · arXiv: 2412.04865
Other panels of Fig. 2: (a-1) (a-2) (a-3)
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