This work demonstrates a method to engineer spatial correlations in photons, suggesting new applications in quantum technologies.
Photon correlations represent a central resource in many quantum optics experiments, with applications ranging from quantum information protocols to sensing. Engineering such correlations is often challenging, especially in multi‐particle scenarios. This work describes an effective method for shaping spatial correlations between photons by patterning their distinguishability in a quantum interference setup. How one may write and edit these bi‐photon correlations between the two output channels of a beam‐splitter is presented, where the information encoded remains hidden from conventional intensity measurements. The scheme presented here offers an easy extension to multiparticle scenarios and facilitates the transmission of high‐dimensional quantum information, opening new avenues for applications in quantum technologies and imaging protocols.
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Schiano et al. (2026) studied this question.
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