Entanglement-controlled Vectorial Quantum Meta-Holography

Abstract Metasurfaces can precisely manipulate the amplitude, phase, and polarization of incident light through subwavelength structures, greatly advancing the quantum meta-holographic imaging. However, the current methods of using quantum holography only control either the amplitude or the phase on the imaging plane, so the resulted scalar holography without the polarization distribution has limited imaging channels. Here, the vectorial quantum meta-holography using entangled photon-pairs is experimentally demonstrated, by simultaneously controlling the amplitude ratio between two cross-polarization holographic images and their phase difference on the image plane. Since the polarization distribution accordingly changes with the polarization state of the incident light, this approach not only reconstructs 32 incident polarization states with an average fidelity up to 94.78%, but also enables entangled idler photons to remotely control the holographic images reconstructed by the signal photons, where the signal-to-noise ratio increases to 10.78 dB, even for maximally mixed states. This vectorial meta-holography using entangled states has a larger polarization state information capacity and will facilitate miniaturized quantum imaging and efficient quantum state tomography.