A research team led by Jietai Jing at East China Normal University demonstrated quantum teleportation across 100 independent channels by encoding a 100-pixel image in a 10-by-10 grid of spatial light modes, effectively achieving parallel quantum information transfer.

The capacity limit was primarily due to available laser power, with about one watt used for pumping; more powerful lasers could enable more spatial modes and additional channels.

This setup represents a scalable architecture for high-bandwidth quantum networks, enabling parallel teleportation without a proportional increase in system complexity.

The work was published in Physical Review Letters, marking a notable step toward practical, high-capacity quantum communication networks.

They created a matching grid of entangled light and an all-optical processing system that handles all 100 channels in parallel, avoiding the need for separate electronic feedforward for each channel.

The experiment achieved an average teleportation fidelity of 0.60 across all channels, surpassing the classical limit of 0.52 and confirming genuine quantum teleportation for the setup.

Each spatial mode acts as a pixel carrying the continuous-variable quantum state of the optical field, and the 100 modes collectively encoded the letter 'Q' for the test image.