Optimal quantum estimation of the coupling between two bosonic modes

Details Optimal quantum estimation of the coupling between two bosonic modes Optimal quantum estimation of the coupling between two bosonic modes

2001-03-14

arxiv.org/abs/quant-ph/0103080v1

J. Opt. B vol 3 337 (2001)

Physics

Quantum Physics

Scientific paper

10.1088/1464-4266/3/5/309

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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