Applying a loss-tolerant GHZ distribution protocol to four-node quantum network sensing yields a quadratic improvement in loss scaling of estimation error (η^-2 vs η^-4), but the promised privacy result is absent from the manuscript.
In this section, we show how to cal- culate the variance of ¯θ and ˆθ
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Private quantum network sensing with efficient multi-partite entanglement distribution via lossy channels
Applying a loss-tolerant GHZ distribution protocol to four-node quantum network sensing yields a quadratic improvement in loss scaling of estimation error (η^-2 vs η^-4), but the promised privacy result is absent from the manuscript.