A new Nature study from Microsoft Quantum and Quantinuum found that quantum error-correction techniques reduced computational errors by 11x to 800x compared with similar calculations run directly on physical qubits.
The study used two error-correction approaches, known as the carbon code and the tesseract code. Plainly, this work showed that quantum systems can reduce errors by distributing information across protected “logical qubits” rather than relying solely on fragile physical qubits.
That is a significant milestone because errors remain one of the biggest barriers to useful quantum computing, as today’s hardware is still highly sensitive to noise. A calculation can break down quickly if errors build up faster than the system can correct them.
Microsoft and Quantinuum said the results show that current quantum processors can already benefit from fault tolerance. The researchers wrote, “Our results show that state-of-the-art quantum devices are already able to make use of fault tolerance and error correction to strongly suppress errors in non-trivial quantum circuit computations.”
Meanwhile, MSFT shares edged up slightly on Friday, closing at $390.74. At the same time, QNT shares dropped 2.18% to close at $55.26.
