Dynamical decoupling can recover Heisenberg scaling of quantum Fisher information (QFI ~ t^2) in non-Markovian open quantum systems when the control satisfies specific decoupling conditions.
Dynamical decoupling leads to improved scaling in noisy quantum metrology,
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Restoring Heisenberg-Limited Precision in Non-Markovian Open Quantum Systems via Dynamical Decoupling
Dynamical decoupling can recover Heisenberg scaling of quantum Fisher information (QFI ~ t^2) in non-Markovian open quantum systems when the control satisfies specific decoupling conditions.