Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:2207.02333 · PRX Quantum

Manipulation and Certification of High-Dimensional Entanglement through a Scattering Medium

Baptiste Courme, Patrick Cameron, Daniele Faccio, Sylvain Gigan, Hugo Defienne

Published Jan 19, 2023• 31 citations
arXivHTMLPDF

Abstract

A wavefront shaping approach enables protection of high-dimensional entangled photons traversing a scattering medium, a situation that typically hinders the building of practical quantum microscopy and quantum key distribution.
DOI
10.1103/prxquantum.4.010308

Related papers

Controlling the propagation of quantum entanglement through a scattering medium by wavefront shaping

Hugo Defienne, Matthew C. Reichert, Jason W. Fleischer

We generalize optical wavefront shaping to the quantum domain and use it for reconstructing spatial entanglement between photon pairs that have been randomized after propagation through a scattering medium.

Imaging and Applied Optics•Jan 1, 2019•0 citations

Nonclassical light manipulation in a multiple-scattering medium

Hugo Defienne, Marco Barbieri, Bénoît Chalopin +4 more

We investigate the possibility of using a scattering medium as a highly multimode platform for implementing quantum walks. We demonstrate the manipulation of a single photon propagating through a strongly scattering medium using wavefront-shaping technique. Measurement of the scattering matrix allows the wavefront of the photon to be shaped to compensate the distortions induced by multiple scattering events. The photon can thus be directed coherently to a specific output mode. Using this approach, we show how entanglement of a single photon across different modes can be manipulated despite the enormous wavefront disturbance caused by the scattering medium.

arXiv:1401.3239•Optics Letters•Oct 15, 2014•40 citations

Enhancing Optical Microscopy with Quantum Entanglement

Xin Tong, Yide ide Zhang, Lihong ihong V. Wang

Drawing on the unique properties of entangled photons, quantum approaches can overcome the limitations of classical methods, enhance spatial resolution and reduce stray light and shot noise.

Optics and Photonics News•Oct 30, 2024•0 citations

Coincidence-feedback-based wavefront shaping through a scattering layer

Baptiste Courme, Daniele Faccio, Sylvain Gigan +1 more

This study falls within the emerging field of quantum optics in scattering media. By employing wavefront shaping, researchers successfully transmitted spatially entangled photon pairs through scattering media, mitigating optical disturbances by wavefront shaping. They maintained entanglement with a dimensionality of 17 after propagation, opening avenues for applications in quantum microscopy and quantum communication. Interestingly, this work also shows that in certain cases, quantum entanglement can be transmitted through a complex medium, while classical light remains scattered.

SPIE Quantum Technologies•Apr 5, 2024•0 citations

Quantum Photonics and High-Dimensional Entanglement

Between science and economics•Jun 1, 2022•0 citations

Wavefront correction of high-dimensional two-photon states via coherence-entanglement transfer

Shaurya Aarav, Hugo Defienne

Reliable transmission of quantum optical states through real-world environments is key for quantum communication and imaging. Yet, aberrations and scattering in the propagation path can scramble the transmitted signal and hinder its use. A typical strategy is to employ a classical beacon beam to learn and then correct for the wavefront distortions. However, relying on a separate light source increases the overhead in the experimental apparatus. Moreover, the beacon light must closely match the non-classical state in polarization, wavelength, and even temporal bandwidth, which is highly challenging in practice. Here, we introduce a fast and efficient wavefront correction approach where we use the quantum state itself to correct for optical distortion. Via pump shaping, we control the degree of entanglement in the spatially-entangled two-photon state so that it behaves either as a high-dimensional entangled state or as a classical coherent state. The latter case is used to efficiently measure the transmission matrix of the propagation channel and correct its distortions with a spatial light modulator, thereby enabling the transmission of the high-dimensional entangled state with minimal errors. Our approach paves the way for the practical implementation of quantum imaging and communication protocols based on high-dimensional spatially entangled states.

arXiv:2509.04170•Optica Quantum•May 18, 2026•0 citations
We investigate the possibility of using a scattering medium as a highly multimode platform for implementing quantum walks. We demonstrate the manipulation of a single photon propagating through a strongly scattering medium using wavefront-shaping technique. Measurement of the scattering matrix allows the wavefront of the photon to be shaped to compensate the distortions induced by multiple scattering events. The photon can thus be directed coherently to a specific output mode. Using this approach, we show how entanglement of a single photon across different modes can be manipulated despite the enormous wavefront disturbance caused by the scattering medium.
This study falls within the emerging field of quantum optics in scattering media. By employing wavefront shaping, researchers successfully transmitted spatially entangled photon pairs through scattering media, mitigating optical disturbances by wavefront shaping. They maintained entanglement with a dimensionality of 17 after propagation, opening avenues for applications in quantum microscopy and quantum communication. Interestingly, this work also shows that in certain cases, quantum entanglement can be transmitted through a complex medium, while classical light remains scattered.
Reliable transmission of quantum optical states through real-world environments is key for quantum communication and imaging. Yet, aberrations and scattering in the propagation path can scramble the transmitted signal and hinder its use. A typical strategy is to employ a classical beacon beam to learn and then correct for the wavefront distortions. However, relying on a separate light source increases the overhead in the experimental apparatus. Moreover, the beacon light must closely match the non-classical state in polarization, wavelength, and even temporal bandwidth, which is highly challenging in practice. Here, we introduce a fast and efficient wavefront correction approach where we use the quantum state itself to correct for optical distortion. Via pump shaping, we control the degree of entanglement in the spatially-entangled two-photon state so that it behaves either as a high-dimensional entangled state or as a classical coherent state. The latter case is used to efficiently measure the transmission matrix of the propagation channel and correct its distortions with a spatial light modulator, thereby enabling the transmission of the high-dimensional entangled state with minimal errors. Our approach paves the way for the practical implementation of quantum imaging and communication protocols based on high-dimensional spatially entangled states.