隐藏在量子关联中的图像
Hiding images in quantum correlations
AI总结:
本研究针对量子光子学中光子对关联特性调控难的问题,通过塑形纠缠光子的空间关联将图像信息编码其中,使其无法被传统强度测量探测,为量子通信与成像协议开发提供了新途径。
摘要:
自发参量下转换中的光子对关联在量子光子学中无处不在。为优化特定任务而调控其特性的能力至关重要,但在实践中往往颇具挑战。我们展示了对纠缠光子之间空间关联的塑形,形式为任意振幅和相位物体。通过这种方式,我们将图像信息编码在光子对关联中,使其无法被传统强度测量探测到。该研究实现了利用光子的量子关联传输复杂的高维信息,可用于开发量子通信和成像协议。
英文摘要:
Photon-pair correlations in spontaneous parametric down conversion are ubiquitous in quantum photonics. The ability to engineer their properties for optimising a specific task is essential, but often challenging in practice. We demonstrate the shaping of spatial correlations between entangled photons in the form of arbitrary amplitude and phase objects. By doing this, we encode image information within the pair correlations, making it undetectable by conventional intensity measurements. It enables the transmission of complex, high-dimensional information using quantum correlations of photons, which can be useful for developing quantum communication and imaging protocols.
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