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Progress in quantum structured light
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DOI：10.1038/s41566-025-01795-x.png)
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Abstract
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Photons can be structured in space and time, blending quantum information and structured light in the context of high-dimensional and multidimensional entanglement. This opens a pathway to richly textured Hilbert spaces, high-information-capacity photons and exciting applications that exploit the new multiple-degrees-of-freedom modalities of quantum structured light. Progress has accelerated of late, driven by a modern toolkit comprising both bulk and on-chip solutions, taming dimensionality and unlocking exciting applications from imaging and sensing to networks and communication. In this Review we aim to capture this exciting inflection point, where quantum structured light can finally be harnessed to realize its full potential. This Review provides an overview of the progress in quantum structured light, both as single and entangled photon states, with an emphasis on prospective applications in quantum information science such as quantum communication and quantum imaging.
Keywords:
quantum structured light
high-dimensional entanglement
quantum information
photon states
quantum communication
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