MilestoneHardwareConfirmed

A trapped-ion experiment certifies quantum keys through a Bell test

Sep 29, 2021

David Nadlinger and colleagues generate keys using two optically linked ions and certify security through Bell-test statistics. The experiment relies on quantum theory and preventing information leakage; measurements are not space-like separated.

Why it matters

The demonstration reduces the need to trust a detailed device model, bringing device-independent cryptography into an experimental setting.

David P. Nadlinger · Oxford

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