Enforcing positive-semidefinite and Toeplitz structure on quantum correlation functions via trace-minimizing semidefinite programming reduces frequency estimation error from sparse noisy data in GHZ magnetometry.
Quantum-enhanced measurements: Beating the stan- dard quantum limit,
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Physics-Constrained Compressed Sensing for Quantum Sensing in the Data-Starved Regime
Enforcing positive-semidefinite and Toeplitz structure on quantum correlation functions via trace-minimizing semidefinite programming reduces frequency estimation error from sparse noisy data in GHZ magnetometry.