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

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

URL: http://arxiv.org/abs/2207.02333v2
Date: Mon, 9 Jan 2023 20:47:18 GMT
Title: Manipulation and certification of high-dimensional entanglement through a scattering medium
Authors: Baptiste Courme, Patrick Cameron, Daniele Faccio, Sylvain Gigan and Hugo Defienne
Abstract summary: We demonstrate a wavefront shaping approach to transmit high-dimensional spatially entangled photon pairs through scattering media. Through violation of an Einstein-Podolski-Rosen criterion by $988$ sigma, we show the presence of entanglement after the medium. This work paves the way towards manipulation and transport of entanglement through scattering media, with potential applications in quantum microscopy and quantum key distribution.
Score: 1.9529276795413435
License: http://creativecommons.org/licenses/by/4.0/
Abstract: 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 perturb quantum state propagation and hinder 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 wavefront correction in the classical domain using an intense classical beam as a beacon to compensate for the disturbances suffered by a co propagating beam of entangled photons. Through violation of an Einstein-Podolski-Rosen criterion by $988$ sigma, we show the presence of entanglement after the medium. Furthermore, we certify an entanglement dimensionality of $17$. This work paves the way towards manipulation and transport of entanglement through scattering media, with potential applications in quantum microscopy and quantum key distribution.

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