Defines quenched tail-certified information via inverse upper-tail loss, proves averaged Fisher data cannot certify it, identifies a Fisher-zero integrability transition, and shows tail-certified designs outperform average-QFI optimization by orders of magnitude in NV Ramsey experiments.
Non-Gaussian low-frequency noise as a source of qubit decoherence,
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Imperfection analysis of an adaptive spectator qubit protocol for random telegraph noise mitigation, deriving bounds where suppression performance remains approximately ideal.
citing papers explorer
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Fisher Glasses: Tail-Certified Quantum Metrology in Quenched Environments
Defines quenched tail-certified information via inverse upper-tail loss, proves averaged Fisher data cannot certify it, identifies a Fisher-zero integrability transition, and shows tail-certified designs outperform average-QFI optimization by orders of magnitude in NV Ramsey experiments.
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Imperfection analyses for random-telegraph-noise mitigation using spectator qubits
Imperfection analysis of an adaptive spectator qubit protocol for random telegraph noise mitigation, deriving bounds where suppression performance remains approximately ideal.