Quantum squeezing amplification with a weak Kerr nonlinear oscillator
Fig. 4, panel (c)
Allan deviation $\sigma_\alpha$ of the displacement estimate against the number of Trotter steps $M$ at $N_{\mathrm{meas}} = 3.2\times 10^4$: measured (circles, standard deviations as error bars), the Cramer-Rao bounds from the classical (dashed) and quantum (solid) Fisher information, and the standard quantum limit (grey). In absolute units; the print scales the axis by $10^{-3}$.
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This panel was reproduced from the authors' public data deposit (Nature Communications Source Data: https://doi.org/10.1038/s41467-025-67699-0, CC BY 4.0). 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 4.0.
Nat. Commun. 17, 970 (2025) · DOI: 10.1038/s41467-025-67699-0
Other panels of Fig. 4: (b)
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