Ultimate precision bounds for multiparameter Markovian noise metrology show average variance scaling as Ω(1/(T R²)) with Heisenberg scaling in dissipative channels R when using entangled probes and high-rank signal correlations, attainable via rapid prepare-and-measure protocols.
Huang , author M
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Dressed states generated by static fields protect Heisenberg scaling in quantum metrology for low-temperature noise precisely when the signal generator lies outside the linear span of the system-environment coupling operators.
A state discrimination game on energy-restricted quantum states creates a hierarchy of optimal success probabilities that certifies multipartite entanglement structure.
A review of time-reversal and interaction-based readout in cavity QED for quantum metrology, covering SATIN, scrambling-enhanced metrology, and related schemes.
This review summarizes the properties of diamond color defects, progress toward quantum network building blocks and metropolitan-scale demonstrations, and key challenges with potential solutions.
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Precision Limits of Multiparameter Markovian-Noise Metrology
Ultimate precision bounds for multiparameter Markovian noise metrology show average variance scaling as Ω(1/(T R²)) with Heisenberg scaling in dissipative channels R when using entangled probes and high-rank signal correlations, attainable via rapid prepare-and-measure protocols.
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Protecting Heisenberg scaling in quantum metrology via engineered dressed states
Dressed states generated by static fields protect Heisenberg scaling in quantum metrology for low-temperature noise precisely when the signal generator lies outside the linear span of the system-environment coupling operators.
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Entanglement Structure Certification Based on Energy-Restricted State Discrimination
A state discrimination game on energy-restricted quantum states creates a hierarchy of optimal success probabilities that certifies multipartite entanglement structure.
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Time-Reversal and Reversible Dynamics in Cavity QED for Quantum Metrology
A review of time-reversal and interaction-based readout in cavity QED for quantum metrology, covering SATIN, scrambling-enhanced metrology, and related schemes.
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Quantum Networks Using Color Defects in Diamond: Principles, Progress, and Perspectives
This review summarizes the properties of diamond color defects, progress toward quantum network building blocks and metropolitan-scale demonstrations, and key challenges with potential solutions.