Manipulation and certification of high-dimensional entanglement through a scattering medium

Courme, B., Cameron, P., Faccio, D. , Gigan, S. and Defienne, H. (2023) Manipulation and certification of high-dimensional entanglement through a scattering medium. PRX Quantum, 4(1), 010308. (doi: 10.1103/PRXQuantum.4.010308)

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High-dimensional entangled quantum states improve the performance of quantum technologies compared to qubit-based approaches. In particular, they enable quantum communications with higher information capacities or enhanced imaging protocols. However, the presence of optical disorder such as atmospheric turbulence or biological tissue perturbs quantum state propagation and hinders their practical use. Here, we demonstrate a wavefront shaping approach to transmit high-dimensional spatially entangled photon pairs through scattering media. Using a transmission matrix approach, we perform wave-front correction in the classical domain using an intense classical beam as a beacon to compensate for the disturbances suffered by a copropagating beam of entangled photons. Through violation of an Einstein-Podolski-Rosen criterion by 988 σ , we show the presence of entanglement after the medium. Furthermore, we certify an entanglement dimensionality of 17. This work paves the way toward manipulation and transport of entanglement through scattering media, with potential applications in quantum microscopy and quantum key distribution.

Item Type:Articles
Additional Information:D.F. acknowledges support from the Royal Academy of Engineering Chairs in Emerging Technologies Scheme and funding from the United Kingdom Engineering and Physical Sciences Research Council (Grants No. EP/M01326X/1 and No. EP/R030081/1) and from the European Union Horizon 2020 research and innovation program under Grant Agreement No. 801060. S.G. acknowledges funding from the European Research Council (ERC) Consolidator Grant (Grant no. SMARTIES724473). H.D. acknowledges funding from the ERC Starting Grant (Grant No. SQIMIC-101039375).
Glasgow Author(s) Enlighten ID:Defienne, Dr Hugo and Faccio, Professor Daniele and Cameron, Mr Patrick
Authors: Courme, B., Cameron, P., Faccio, D., Gigan, S., and Defienne, H.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:PRX Quantum
Publisher:American Physical Society
ISSN (Online):2691-3399
Published Online:19 January 2023
Copyright Holders:Copyright © 2023 American Physical Society
First Published:First published in PRX Quantum 4(1): 010308
Publisher Policy:Reproduced under a Creative Commons License
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
305153RAEng Chair Emerging TechnologiesDaniele FaccioRoyal Academy of Engineering (RAE)CiET1819/20P&S - Physics & Astronomy
190841UK Quantum Technology Hub in Enhanced Quantum ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/M01326X/1P&S - Physics & Astronomy
301688Nano-scale imaging with Hong-Ou-Mandel InterferometryDaniele FaccioEngineering and Physical Sciences Research Council (EPSRC)EP/R030081/1P&S - Physics & Astronomy