ArticleScience advances2022
Propagation-induced revival of entanglement in the angle-OAM bases.
Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Position-correlated biphoton wavefront sensing for quantum adaptive imaging.Light, science & applications · 2025Article
- Broadband uniform-efficiency OAM-mode detector.Science advances · 2025Article
- Phase-Dislocation-Mediated High-Dimensional Fractional Acoustic-Vortex Communication.Research (Washington, D.C.) · 2023Article
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Authors and funding
5 authors.
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Abstract
Although the continuous-variable position-momentum entanglement of photon pairs produced by parametric down-conversion has applicability in several quantum information applications, it is not suitable for applications involving long-distance propagation. This is because entanglement in the position-momentum bases, as seen through Einstein-Podolsky-Rosen (EPR)-correlation measurements, decays very rapidly with photons propagating away from the source. In contrast, in this article, we show that in the continuous-variable bases of angle-orbital angular momentum (OAM), the entanglement, as seen through EPR-correlation measurements, exhibits a remarkably different behavior. As with the position-momentum bases, initially, the entanglement in the angle-OAM bases also decays with propagation, and after a few centimeters of propagation, there is no angle-OAM entanglement left. However, as the photons continue to travel further away from the source, the entanglement in the angle-OAM bases revives. We theoretically and experimentally demonstrate this behavior and show that angle-OAM entanglement revives even in the presence of strong turbulence.
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Registered trials
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