Quantum Advantage in Postselected Metrology

25 Sep 2020 Arvidsson-Shukur David R. M. Halpern Nicole Yunger Lepage Hugo V. Lasek Aleksander A. Barnes Crispin H. W. Lloyd Seth

We show that postselection offers a nonclassical advantage in metrology. In every parameter-estimation experiment, the final measurement or the postprocessing incurs some cost... (read more)

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  • QUANTUM PHYSICS