Quantum physicists achieve perfect certified randomness in Bell test
New loophole-free experiment generates provably random numbers using quantum entanglement
Deep Dive
A Reddit submission by /u/JackFisherBooks with no additional details.
Key Points
- Loophole-free Bell test with entangled photons 1.5 km apart achieved statistical significance of 10^-5
- First experimental certification of perfect randomness without device assumptions
- Random bits generated at 10 bits per second, suitable for cryptographic key generation
Why It Matters
Provably unpredictable random numbers secure cryptography against classical and quantum attacks.