Imaging of polarization-sensitive metasurfaces with quantum entanglement
Imaging of polarization-sensitive metasurfaces with quantum entanglement
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DOI：
10.1103/physreva.99.020101
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发表时间：
2019-02-07
影响因子：
2.9
通讯作者：
Faccio, Daniele
中科院分区：
文献类型：
--
作者：
Altuzarra, Charles;Lyons, Ashley;Faccio, Daniele
量子纠缠是一种关键资源，可用于量子隐形传态、量子计算和量子密码学等一系列应用。然而，到目前为止，利用成像系统中的纠缠的努力已经导致了诸如幽灵成像的解决方案，这些解决方案已经找到了经典的实现。在这里，我们展示了一种独特依赖于纠缠的光学成像协议：仅当使用纠缠光子时，在超表面上印上和叠加的两个偏振模式才能单独成像。未纠缠的光不能区分这两种模式。功能超表面的纠缠单光子成像有望在量子信息协议中使用纳米结构亚波长薄器件，并为有效的量子态层析成像提供途径。
Quantum entanglement is a key resource that can be exploited for a range of applications such as quantum teleportation, quantum computation, and quantum cryptography. However, efforts to exploit entanglement in imaging systems have so far led to solutions such as ghost imaging, that have since found classical implementations. Here, we demonstrate an optical imaging protocol that relies uniquely on entanglement: Two polarizing patterns imprinted and superimposed on a metasurface are separately imaged only when using entangled photons. Unentangled light is not able to distinguish between the two patterns. Entangled single-photon imaging of functional metasurfaces promises advances towards the use of nanostructured subwavelength thin devices in quantum information protocols and a route to efficient quantum state tomography.