Qiang Zhang

The new photonic computer Jiuzhang 4.0 pushes photons through a network of microchannels and uses photometry—precise counting of light flashes—to record the final pattern. This pattern is beyond any ordinary computer: it would require sifting through more possibilities than atoms in the universe. Th

The device generates pairs of entangled photons at a record rate—45 billion per second—consuming just milliwatts of power. The purity of the quantum connection exceeds 96%. Its tiny size and efficiency bring quantum internet, secure satellite links, and ultra-precise sensors closer to reality.

For the first time, single atoms were reliably linked over long optical fiber, and a secret code was extracted from their 'conversation'. Any eavesdropping attempt instantly destroys the pair — not a trick, but a property of the quantum world. This protection scheme turns any interception into a bla