A conventional quantum eraser involves physical double slits or virtual paths, such as orbital angular momentum, and has been demonstrated to probe the wave-particle duality of light in the quantum optical regime. Here, we extend the concept of the quantum eraser to holographic applications through a geometric-phase metasurface. In this case, we mark hologram paths with polarization using an entangled photon pair. As a result of a quantum holographic eraser, we demonstrate selective erasure of specific hologram regions with various inserted erasers as a visual manifestation of restoring interference. Our work extends the application of metasurfaces in investigating fundamental concepts, including entanglement, non-locality, and the role of information in quantum optics.
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