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Optimal quantum estimation of the coupling between two bosonic modes

G. Mauro D'Ariano·Matteo G. A. Paris·Paolo Perinotti
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Abstract

We address the problem of the optimal quantum estimation of the coupling parameter of a bilinear interaction, such as the transmittivity of a beam splitter or the internal phase-shift of an interferometer. The optimal measurement scheme exhibits Heisenberg scaling of the measurement precision versus the total energy.

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G. Mauro D'Ariano, Matteo G. A. Paris, Paolo Perinotti. 2001-03-14. Optimal quantum estimation of the coupling between two bosonic modes. https://doi.org/10.1088/1464-4266/3/5/309

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