论文标题

通过散射介质操纵和认证高维纠缠

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

论文作者

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

论文摘要

与基于量子的方法相比,高维纠缠量子状态改善了量子技术的性能。特别是,它们可以具有较高的信息能力或增强成像协议的量子通信。然而,存在光学障碍,例如大气湍流或生物组织扰动量子状态的传播,并阻碍其实际使用。在这里,我们展示了一种波前塑形方法,可以通过散射介质传输高维空间纠缠的光子对。使用传输矩阵方法,我们使用强烈的经典梁作为标准在经典结构域中进​​行波前校正,以补偿由co繁殖的纠缠光子束传播束所遭受的干扰。通过违反$ 988 $ SIGMA的爱因斯坦 - 邮政-Podolski-Rosen标准,我们显示了媒介后的纠缠。此外,我们证明了$ 17 $的纠缠维度。这项工作铺平了通过散射介质操纵和运输纠缠的方式,并具有潜在的量子显微镜和量子键分布中的应用。

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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