Eloi Descamps

Jul 18, 2023 | link.aps.org | Nicolas Fabre |Departamento de Óptica |Eloi Descamps

Abstract We study the role of the electromagnetic field’s frequency on the precision limits of time measurements from a quantum perspective, using single photons as a paradigmatic system. We demonstrate that a quantum enhancement of precision is possible only when combining both intensity and spectral resources and, in particular, that spectral correlations enable a quadratic scaling of precision with the number of probes.