Researchers used a programmable 10×10 array to teleport quantum states across 100 spatial optical modes in parallel and reconstruct a 100-pixel “Q.” ScienceAlert reports an average fidelity of 0.60 against a 0.52 classical limit, while Phys.org describes the shared all-optical feedforward that processes every channel at once. The laboratory result demonstrates bandwidth and reconfigurability; it does not yet constitute a long-distance quantum network.
Phys.org and ScienceAlert report that an East China Normal University team teleported quantum states simultaneously across 100 distinct spatial optical modes. The researchers formed a 10×10 array with a programmable spatial light modulator and matched every mode to a corresponding entanglement array generated in hot rubidium vapor. Each channel remained separately addressable while all one hundred operated in parallel within the same optical setup.[1], [2]
Instead of building separate electronic feedforward for every channel, the apparatus used an all-optical method that applied the required correction across the array at once. The team reconstructed the states of all 100 modes and a 100-pixel letter Q encoded across them. ScienceAlert reports an average fidelity of 0.60, above the 0.52 classical limit available without entanglement, with every mode clearing its corresponding classical threshold.[1], [2]
The experiment advances channel capacity rather than distance. The letter Q was not an object transported through space, but a visual pattern encoded in the amplitude and phase of optical quantum states. The present 10×10 array was limited largely by roughly one watt of pump power, and stronger lasers could open more modes. The result demonstrates reconfigurable parallel processing in a laboratory; it does not establish an operating quantum network between distant nodes.[1], [2]
