Optimal finite-dimensional probe states for quantum phase estimation under particle loss are found via constrained optimization, and a two-step measurement strategy achieves the ultimate precision limit as confirmed by numerical simulations.
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An automated design algorithm optimizes photonic experiment topologies and source parameters to achieve higher-probability entanglement generation for Bell, W, and NOON states while accounting for multi-pair emissions.
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Optimal noisy quantum phase estimation with finite-dimensional states
Optimal finite-dimensional probe states for quantum phase estimation under particle loss are found via constrained optimization, and a two-step measurement strategy achieves the ultimate precision limit as confirmed by numerical simulations.
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Automated experimental design for high-probability entanglement generation
An automated design algorithm optimizes photonic experiment topologies and source parameters to achieve higher-probability entanglement generation for Bell, W, and NOON states while accounting for multi-pair emissions.