Journal
OPTICA
Volume 5, Issue 9, Pages 1150-1154Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.5.001150
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Funding
- Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung (SNF) [PP00P2_159259]
- H2020 Future and Emerging Technologies (FET) [686731]
- Swiss National Science Foundation (SNF) [PP00P2_159259] Funding Source: Swiss National Science Foundation (SNF)
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The Abbe-Rayleigh diffraction limit constrains spatial resolution for classical imaging methods. Quantum imaging exploits correlations between photons to reproduce structures with higher resolution. Quantum-correlated N-photon states were shown to potentially surpass the classical limit by a factor of 1/N, corresponding to the Heisenberg limit, using a method known as optical centroid measurement (OCM). In this work, the theory of OCM is reformulated for its application in imaging. Using entangled photon pairs and a recently developed integrated time-resolving detector array, OCM is implemented in a proof-of-principle experiment that demonstrates the expected enhancement. Those results show the relevance of entanglement for imaging at the Heisenberg limit. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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