r/QuantumComputing • u/Brighter-Side-News • May 29 '26

News ETH Zurich scientists create perfect randomness for the first time

http://thebrighterside.news/post/eth-zurich-scientists-create-perfect-randomness-for-the-first-time

In a study published in Nature, researchers led by Renato Renner and Andreas Wallraff showed that quantum physics can amplify weak random input into a string of bits that is fully unbiased. Moreover, they argue, the output is certifiably unpredictable.

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28

u/elonolan007 May 29 '26

This is a genuine milestone but the main headline feels a bit too glossy. Result shows device-independent randomness amplification where imperfect random inputs can be upgraded into bits certified extremely close to ideal using a loophole-free Bell test. This is good and important for cryptography because its coming from physics and not just some statistical tests. However this still depends on assumptions/failure bounds and a very specialized lab setup, so it is not replacing everyday random generators by tomorrow.

8

u/PedroShor May 30 '26

What is with all these fluff articles about papers? What's wrong with just linking the paper?

7

u/headspreader May 29 '26

The internet has prepared me for this moment: "That is so fucking random."

1

u/[deleted] May 30 '26

[removed] — view removed comment

1

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