One qubit is enough to generate truly random numbers
Researchers from Raman Research Institute (RRI), IISc, and the University of Calgary have built a new way to generate truly random numbers using just one quantum bit (qubit)—and they made it work on cloud-based quantum computers.
This matters because real randomness is key for keeping digital stuff secure.
Breakthrough in using single qubit for generating random numbers
The RRI team started with big quantum tests back in 2022 and, by 2024, managed to create almost a million certified random bits.
By 2025, they showed their method works on IBM's public quantum computers—making things much simpler by using just one qubit instead of complicated setups.
It's a big step toward making quantum-powered security tools more practical for everyone.
The new method can also be used to benchmark quantum computers
These certified random numbers help build super-secure digital keys that protect your online info.
The method not only boosts cryptography but also checks how well today's quantum machines perform—bringing us closer to real-world secure communication powered by quantum tech.