Published September 23, 2024
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Optimizing measurement tradeoffs in multiparameter spatial superresolution
- 1. Departamento de Óptica, Facultad de Física, Universidad Complutense, 28040 Madrid, Spain
- 2. Institute for Quantum Studies, Chapman University, Orange, California 92866, USA
- 3. Max-Planck-Institut für die Physik des Lichts, 91058 Erlangen, Germany
- 4. National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, Canada K1N 5A2
- 5. Department of Physics, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, Canada K1N 6N5
- 6. Department of Optics, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
Description
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.
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10.1103_PhysRevA.110.033716.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.110.033716;
- arXiv
- arXiv:2406.17009;
- Crossref Funder ID
- 10.13039/501100011033; 10.13039/501100000038; 10.13039/100000001; 10.13039/100005956;
Publishing Information
- Journal Title
- Physical Review A
- Journal Volume
- 110
- Journal Issue
- 3
- Journal Page Range
- 6 pgs.
- ISSN
- 1094-1622
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- BEAM SPLITTING; EXTRACTION; FUNCTIONS; INCOHERENT SCATTERING; INFORMATION; INFORMATION THEORY; MEASURING METHODS; OPTIMIZATION; PURE STATES; QUANTUM COMPUTERS; QUANTUM INFORMATION; QUANTUM MECHANICS; QUANTUM OPTICS
- Descriptors DEC
- COMPUTERS; INFORMATION; MECHANICS; OPTICS; QUANTUM STATES; SCATTERING; SEPARATION PROCESSES
Optional Information
- Contract/Grant/Project number
- PID2021-127781NB-I00
- Notes
- Record automatically processed
- Funding organization
- Agencia Estatal de Investigación; Natural Sciences and Engineering Research Council of Canada; National Science Foundation; Kavli Institute for Theoretical Physics, University of California, Santa Barbara