Fundamental quantum limits in ellipsometry
arXiv:2007.10440 · doi:10.1364/OL.392955
Abstract
We establish the ultimate limits that quantum theory imposes on the accuracy attainable in optical ellipsometry. We show that the standard quantum limit, as usual reached when the incident light is in a coherent state, can be surpassed with the use of appropriate squeezed states and, for tailored beams, even pushed to the ultimate Heisenberg limit.
arXiv commentTo be published in Optics Letters
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- Multiparameter transmission estimation at the quantum Cramér-Rao limit on a cloud quantum computer
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- Optimizing the generation of polarization squeezed light in nonlinear optical fibers driven by femtosecond pulses
- Optimal transmission estimation with dark counts
- Light as quantum back-action nullifying meter
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- Reduced state of the field and classicality of quantum Gaussian evolution