Optimizing measurement tradeoffs in multiparameter spatial superresolution
The quantum Cramér-Rao bound for the joint estimation of the centroid and the separation between two incoherent point sources cannot be saturated. As such, the optimal measurements for extracting maximal information about both at the same time are not known. In this paper, we ascertain these optimal measurements for an arbitrary point spread function, in the most relevant regime of a small separation between the sources. Our measurement can be adjusted within a set of tradeoffs, allowing more information to be extracted from the separation or the centroid while ensuring that the total information is the maximum possible. Published by the American Physical Society 2024
Authors
- Aaron Z. Goldberg (ORCID: https://orcid.org/0000-0002-3301-7672)
- Z. Hradil (ORCID: https://orcid.org/0000-0001-8732-4638)
- J. Řeháček (ORCID: https://orcid.org/0000-0002-4969-2760)
- L. L. Sánchez-Soto (ORCID: https://orcid.org/0000-0002-7441-8632)
- J. L. Romero (ORCID: https://orcid.org/0000-0003-4499-7378)
Institutions
- Universidad Complutense de Madrid (ES)
- University of Ottawa (CA)
- Chapman University (US)
- Max Planck Institute for the Science of Light (DE)
- National Research Council Canada (CA)
- Palacký University Olomouc (CZ)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2024-09-23
- DOI
- https://doi.org/10.1103/physreva.110.033716
- Citations
- 3
- Primary Topic
- Optical measurement and interference techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.75
Funders
- National Science Foundation
- Natural Sciences and Engineering Research Council of Canada
- Agencia Estatal de Investigación
- Kavli Institute for Theoretical Physics, University of California, Santa Barbara