Quantum Turnstile Network: 200 Users Fully Protected ⚡ экспресс
Original: "Microcomb-driven large-scale fully connected quantum network"
A network of 200 people where security is built on a synchronized photon dance: the provider only points to the turnstile, but never sees the password.
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Two photons, like conspirators, always exit through the same door. This quantum trick allowed scientists to connect 200 people in a secure network spanning 200 km. Even if the provider is the enemy, they won't learn the secrets. Soon, city-wide quantum networks will become a reality.
🎯 The effect that makes photons 'march in step' was first demonstrated in 1987 by [scientist:Leonard Mandel]Leonard Mandel[/scientist] and colleagues. It works only for fully indistinguishable particles—the slightest imperfection breaks the synchronization. Today, this same trick underpins quantum teleportation and computing.