The experimental result by University of New South Wales engineers demonstrated error rates as low as 0.043 percent, lower than any other electron spin qubit. The joint research paper by the Sydney and UNSW teams was published this week in Nature Electronics and is the journal's cover story for April.
"Reducing errors in quantum computers is needed before they can be scaled up into useful machines," said Professor Stephen Bartlett, a corresponding author of the paper.
Scale - Computers - Promise - Problems - Capacity
"Once they operate at scale, quantum computers could deliver on their great promise to solve problems beyond the capacity of even the largest supercomputers. This could help humanity solve problems in chemistry, drug design and industry."
There are many types of quantum bits, or qubits, ranging from those using trapped ions, superconducting loops or photons. A 'spin qubit' is a quantum bit that encodes information based on the quantised magnetic direction of a quantum object, such as an electron.
Australia - Sydney - Leader - Technology - Announcement
Australia, and Sydney in particular, is emerging as a global leader in quantum technology. The recent announcement to fund the establishment of a Sydney Quantum Academy, underlines the huge opportunity in Australia to build a quantum economy based on the world's largest concentration of quantum research groups here in Sydney.
While much of the recent focus in quantum computing has been on advances in hardware, none of these advances have been possible without the development of quantum information theory.
University - Sydney - Quantum - Theory - Group
The University of Sydney quantum theory group, led by Professor Stephen Bartlett and Professor Steven Flammia, is one of the world powerhouses of quantum information theory, allowing for engineering and experimental teams across the globe make the painstaking physical advances needed to ensure quantum computing becomes a reality.
The work of the Sydney quantum theory group was essential for the world-record result published in Nature Electronics.
Professor - Bartlett - Error - Rate
Professor Bartlett said: "Because the error rate was...
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