Optimal quantum estimation of the coupling between two bosonic modes

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.

Cited by in corpus (9)

• Optimal quantum estimation of loss in bosonic channels
• Squeezed vacuum as a universal quantum probe
• Optimal Heisenberg-style bounds for the average performance of arbitrary phase estimates
• Characterization of qubit chains by Feynman probes
• Enhancement of parameter estimation by Kerr interaction
• Improving quantum interferometry by using entanglement (to take a decision you'd better use entanglement)
• A complementarity-based approach to phase in finite-dimensional quantum systems
• Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junction
• Quantum interferometry at zero and finite temperature with two-mode bosonic Josephson junctions