Their analysis, printed final week within the journal Physical Review Letters, relied on microwave-based management fairly than the hardware-intensive error-suppression strategies utilized by Google. The Chinese method “could offer a more efficient route than Google’s” to constructing giant, fault-tolerant quantum computer systems, the crew mentioned in a press release on Monday.
Joseph Emerson, a physicist on the University of Waterloo in Canada who was not concerned within the analysis, mentioned the research tackled one in all quantum computing’s most troublesome issues: qubits drifting out of their meant states and quietly spreading errors by way of the system.
Writing within the American Physical Society’s Physics journal, Emerson described the experiment as “an impressive feat”, whereas cautioning that it remained removed from the size wanted for sensible, real-world purposes.
Quantum computer systems work by harnessing the legal guidelines of quantum physics fairly than the easy on-off logic utilized by extraordinary computer systems. In idea, this permits them to sort out sure duties – reminiscent of optimising advanced programs or simulating molecules – in minutes that might take in the present day’s machines hundreds of years to finish.