ETH Team Demonstrates Quantum Randomness Amplification With 2-Qubit Superconducting Circuits
Updated
Updated · Nature.com · May 27
ETH Team Demonstrates Quantum Randomness Amplification With 2-Qubit Superconducting Circuits
6 articles · Updated · Nature.com · May 27
A Nature paper reports the first experimental randomness amplification protocol, turning weak random bits from imperfect devices into stronger randomness using superconducting quantum circuits.
The result is device-independent: it relies on a loophole-free Bell test in a regime requiring both high Bell-inequality violation and high repetition rates, without trusting the hardware’s internal workings.
Researchers say that combination of new theory and improved superconducting-circuit performance made the protocol experimentally feasible, extending earlier Bell-test and quantum-randomness work.
Because purely classical methods cannot achieve randomness amplification, the experiment is presented as a definitive quantum advantage with potential use in cryptographic key generation and other security applications.
Beyond unbreakable codes, how could harnessing 'true randomness' reshape fields like AI, science, and even global finance?
With quantum computers poised to break today's codes, can this new technology truly secure our digital future?