Unlocking the Potential of Quantum Computing: A Breakthrough in Certified Randomness
While quantum computers have the ability to perform tasks that classical computers cannot, realizing their full potential has been a challenge. However, a recent study conducted by researchers from JPMorganChase, Quantinuum, Argonne National Laboratory, Oak Ridge National Laboratory, and the University of Texas at Austin has made a significant breakthrough in the field of quantum computing.
The study successfully demonstrated the generation of certified randomness using a 56-qubit quantum computer, marking a milestone in the advancement of quantum computing technology.
Scott Aaronson, the Schlumberger Centennial Chair of Computer Science and director of the Quantum Information Center at UT Austin, expressed his excitement about the experimental demonstration of certified randomness. He emphasized the importance of this achievement in utilizing quantum computers for generating certified random bits for cryptographic applications.
Last year, Google researchers achieved quantum supremacy, showcasing the immense power of quantum computers. However, the challenge remained in harnessing this power to solve practical tasks effectively.
The researchers in this study addressed this challenge by utilizing random circuit sampling (RCS) to generate certified randomness. This method ensures that the output remains truly random and cannot be altered without losing its certification, even if someone gains control of the quantum computer.
Through remote access to a 56-qubit Quantinuum quantum computer, the research team successfully created verified random bits using a protocol based on Random Circuit Sampling (RCS).
Stable Quantum Bits
The protocol involves two main steps. The first step entails presenting the quantum computer with challenges to solve, with the solutions being randomly selected. The second step involves mathematically certifying the randomness using classical supercomputers.
The researchers demonstrated that classical methods are unable to replicate quantum randomness. They utilized high-performance supercomputers with a combined processing power of 1.1 ExaFLOPS to verify the authenticity of 71,313 entropy bits generated by the quantum computer.
Marco Pistoia, Head of Global Technology Applied Research and Distinguished Engineer at JPMorganChase, highlighted the significance of this achievement in quantum computing. He emphasized that the development of certified randomness not only showcases advancements in quantum hardware but also plays a vital role in various fields such as research, statistical sampling, numerical simulations, and cryptography.
This groundbreaking work has been published in the journal Nature, titled “Certified randomness using a trapped-ion quantum processor” by Liu, M., Shaydulin, R., Niroula, P. et al. (2025).
