%0 Journal Article
%A Álvarez Marcos, Ainara
%A Luis Aina, Alfredo
%T Phase-space quantum Wiener-Khintchine theorem
%D 2022
%@ 0146-9592
%U https://hdl.handle.net/20.500.14352/72629
%X We derive a quantum version of the classical-optics Wiener-Khintchine theorem within the framework of detec-tion of phase-space displacements with a suitably designed quantum ruler. A phase-space-based quantum mutual coherence function is introduced that includes the contribu-tion of the detector. We obtain an universal equality linking resolution with coherence. This is illustrated with the case of Gaussian states and number states. (c) 2022 Optica Publishing Group
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