https://doi.org/10.1051/epjconf/202226610017
Achieving the ultimate optical resolution
1 Departamento de Óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain
2 Max-Planck-Institut für die Physik des Lichts, 91058 Erlangen, Germany
3 Department of Optics, Palacký University, 771 46 Olomouc, Czech Republic
4 Integrated Quantum Optics Group, Paderborn University, 33098 Paderborn, Germany
* e-mail: lsanchez@fis.ucm.es
Published online: 13 October 2022
The accurate estimation of the separation between two signals is at the core of many modern technologies. We show new quantum-inspired schemes able to estimate that separation at the quantum limit. The method works in the spatial, temporal, and frequency domains. The question of whether the optical coherence brings any metrological advantage to mode projections is discussed.
© The Authors, published by EDP Sciences
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
