Quantum · Article
DLR Researchers Show Low-Cost Error Mitigation on 100-Qubit IBM and IQM Chips
Quantum Computing Report ·
At a glance
Researchers at the German Aerospace Center (DLR) built a new way to reduce errors in quantum computers. It aims for more accurate results without needing more measurements. They tested it on 100-qubit processors from IBM and IQM.
Key points
- The older method, zero-noise extrapolation (deliberately adding noise, then working backward to estimate clean results), becomes biased on large machines
- The new method pairs each test circuit with a twin that matches the real hardware's noise
- Combined with several randomized runs and other correction techniques, it beat the standard method on every test measure
- The team found that circuit depth (the number of computing steps) affects accuracy more than circuit width
Why it matters
Quantum computers need error reduction to solve real problems, and this study shows the approach can work on larger machines.
Original source
German Aerospace Center (DLR) Researchers Demonstrate Low-Cost Benchmarked-Noise Error Mitigation Across 100-Qubit IBM and IQM Processors
Quantum Computing Report · Nov 14, 07:55 KST
Read on Quantum Computing Report ↗AI summarized the original article. Check the original for accuracy. Copyright belongs to Quantum Computing Report.
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