Top Highlights
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Quantum Milestone Achieved: Researchers from JPMorganChase and others have experimentally demonstrated certified randomness using a 56-qubit quantum computer, marking a significant advancement in quantum computing.
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Guaranteed Randomness Protocol: Building on Scott Aaronson’s 2018 protocol, the team used random circuit sampling (RCS) to ensure that even if a quantum computer is compromised, the output’s randomness remains certified.
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Classical Limits Exposed: Traditional supercomputers, with 1.1 ExaFLOPS processing power, were used to verify the output, proving that classical methods cannot replicate quantum randomness.
- Implications for Cryptography: The development of certified randomness not only advances quantum hardware but is essential for future applications in cryptography, statistical sampling, and numerical simulations.
56-Qubit System Achieves Certified Randomness, Paving the Way for Quantum Applications
A recent study from a collaboration of JPMorganChase, Quantinuum, Argonne National Laboratory, Oak Ridge National Laboratory, and the University of Texas at Austin marks a significant breakthrough in quantum computing. Researchers have successfully demonstrated certified randomness using a 56-qubit quantum computer. This achievement represents a milestone toward harnessing quantum technology for practical applications.
Scott Aaronson, director of the Quantum Information Center at UT Austin, expressed his excitement about the results. He stated, “When I first proposed my certified randomness protocol in 2018, I had no idea how long I’d need to wait to see an experimental demonstration of it.” His vision is now becoming a reality, as the team moves closer to generating certified random bits for cryptographic use.
While Google researchers achieved quantum supremacy last year, translating this power into practical solutions has been a major challenge. This study addresses that gap by employing random circuit sampling (RCS) to generate entropy. The RCS method ensures that even if an outside party attempts to interfere, they cannot manipulate the output without compromising its certified randomness.
To demonstrate their process, the research team accessed a 56-qubit quantum computer over the internet. They ran a protocol that produced more random bits than it started with. This exciting two-step method begins with solving challenges quickly by randomly selecting solutions. It then certifies the randomness using advanced classical supercomputers.
In their verification, researchers found that traditional classical methods failed to replicate the randomness produced by the quantum computer. Utilizing high-performance supercomputers with a staggering 1.1 ExaFLOPS of processing power, the team successfully certified 71,313 entropy bits, underscoring the authenticity of their findings.
Marco Pistoia, Head of Global Technology Applied Research at JPMorganChase, emphasized the importance of this work. “This work marks a major milestone in quantum computing, demonstrating a solution to a real-world challenge using a quantum computer beyond the capabilities of classical supercomputers today.” He also noted that certified randomness will be crucial for future research, statistical sampling, numerical simulations, and cryptography.
Researchers see this development not just as an advancement in quantum hardware, but as a vital step towards unlocking new applications in technology. The potential benefits are vast, offering new possibilities for secure communications and data integrity in an increasingly digital world.
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