Chang-Ling Zou

Scientists launched the first large quantum network connecting 200 users over distances up to 200 km. The secret of protection lies in the behavior of two photons at a half-silvered mirror: if they are perfectly identical, they always go through together. It's like a turnstile that opens only for a

Physicists have for the first time produced up to 100,000 photons in a precisely defined quantum state – hundreds of times more than before. Using virtual lenses, they correct distortions and reduce operation time as the number of particles increases. The method paves the way for ultra-sensitive sen