Hundred-Channel Reconfigurable Quantum Teleportation.

For achieving scalable and flexible quantum communication, a parallel quantum operation based on naturally spatially separable quantum resources is needed. In this Letter, we experimentally realize hundred-channel reconfigurable quantum teleportation with naturally spatially separable channels by integrating programmable holographic encoding with measurement-free all-optical feedforward. Specifically, programmable holographic engineering based on the weighted Gerchberg-Saxton algorithm is used to generate a reconfigurable 10×10 optical array of 100 independently addressable spatial modes, forming naturally spatially separable quantum channels. A measurement-free all-optical feedforward then enables the parallel transfer of quantum information across all channels. Within this architecture, we successfully teleport the entire 100-mode optical array and an image with fidelities beating the corresponding classical limits. Our results offer a viable route for realizing parallel quantum information processing.