A squeezed-vacuum interferometer with nonlinear phase estimation achieves Heisenberg scaling in the lossless limit, sub-SQL sensitivity under noise, and the first experimental quantum-optimal Bayesian signal estimation in a balanced interferometer.
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Noise-Resilient Quantum Metrology
A squeezed-vacuum interferometer with nonlinear phase estimation achieves Heisenberg scaling in the lossless limit, sub-SQL sensitivity under noise, and the first experimental quantum-optimal Bayesian signal estimation in a balanced interferometer.