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16 November 2024 Parameter estimation approach to super resolution
Alexander Boeschoten, Antonin Grateau, Clémentine Rouvière, Ilya Karuseichyk, David Barral, Giacomo Sorelli, Mattia Walschaers, Manuel Gessner, Claude Fabre, Nicolas Treps
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Proceedings Volume PC13202, Quantum Technologies for Defence and Security; PC1320207 (2024) https://doi.org/10.1117/12.3031253
Event: Security + Defence, 2024, Edinburgh, United Kingdom
Abstract
The resolution of optical systems, formulated as the smallest possible distance between two point sources for which they still can be dissolved, was for a long time believed to be limited by diffraction, formulated by the Rayleigh criterion. Recent advancements in quantum metrology have shown, by evaluation of the Quantum Cramér Rao bound (QCRB), that the Rayleigh criterion is not a fundamental limit. In our experiment, spatial mode demultiplexing (SPADE) is used to estimate the separation of the sources orders of magnitude below the Rayleigh limit. The experiment is extended to incorporate the measurement of additional parameters, such as power imbalance and centroid position of the two sources, bringing it closer to real-world applicability.
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Alexander Boeschoten, Antonin Grateau, Clémentine Rouvière, Ilya Karuseichyk, David Barral, Giacomo Sorelli, Mattia Walschaers, Manuel Gessner, Claude Fabre, and Nicolas Treps "Parameter estimation approach to super resolution", Proc. SPIE PC13202, Quantum Technologies for Defence and Security, PC1320207 (16 November 2024); https://doi.org/10.1117/12.3031253
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KEYWORDS
Super resolution
Quantum limits
Quantum optics
Quantum measurement
Quantum bounds
Quantum experiments
Quantum optics experiments
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