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Q2B – Accurate Quantum Computation for Practically Useful Quantum Computers by 2029
['Brian Wang']
News – NextBigFuture.com
However, they are not yet to the scale needed for practically useful problems.
Things start getting useful with about 100 times more scale and definitely at 1000 times more scal.
IBM has improved error correction beyond the surface code to the gross code.
Gross code can achieve low error rates with 14X fewer qubits than surface code systems.
IBM already has 3 of 5 needed things needed for this goal.
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