Exponential advantage in quantum sensing of correlated parameters
Sridhar Prabhu, Vladimir Kremenetski, Saeed A. Khan, Ryotatsu Yanagimoto, Peter L. McMahon
Fig. 3, panel (d)
Mean squared error of the estimate of the sum of phases against the number of samples, for the unentangled sensor with $N = 2$ to 8 qubits (coloured curves) and the entangled sensor, the same for any $N$ (black). The dotted line marks an MSE of $10^{-4}$.
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This panel was regenerated by running the authors' simulation code from their public data deposit (Zenodo: https://doi.org/10.5281/zenodo.15298423, 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.
Quantum 10, 1963 (2026) · DOI: 10.22331/q-2026-01-14-1963 · arXiv: 2504.21745
Other panels of Fig. 3: (e) (h) (i)
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