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- W4221149729 abstract "Quantum optical metrology aims to identify ultimate sensitivity bounds for the estimation of parameters encoded into quantum states of the electromagnetic field. In many practical applications, including imaging, microscopy, and remote sensing, the parameter of interest is not only encoded in the quantum state of the field, but also in its spatio-temporal distribution, i.e. in its mode structure. In this mode-encoded parameter estimation setting, we derive an analytical expression for the quantum Fisher information valid for arbitrary multimode Gaussian fields. To illustrate the power of our approach, we apply our results to the estimation of the transverse displacement of a beam and to the temporal separation between two pulses. For these examples, we show how the estimation sensitivity can be enhanced by adding squeezing into specific modes." @default.
- W4221149729 created "2022-04-03" @default.
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- W4221149729 date "2022-02-21" @default.
- W4221149729 modified "2023-10-17" @default.
- W4221149729 title "Gaussian quantum metrology for mode-encoded parameters" @default.
- W4221149729 doi "https://doi.org/10.48550/arxiv.2202.10355" @default.
- W4221149729 hasPublicationYear "2022" @default.
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