![]() ![]() So they could correct eight errors in a 64-qubit quantum computer, for instance, but not 10. But until now, codes that could make do with limited measurements could correct only a limited number of errors - one roughly equal to the square root of the total number of qubits. The ideal quantum error correction code would correct any errors in quantum data, and it would require measurement of only a few quantum bits, or qubits, at a time. Crucial to most designs for quantum computers is quantum error correction, which helps preserve the fragile quantum states on which quantum computation depends. ![]() ![]() Quantum computers are largely theoretical devices that could perform some computations exponentially faster than conventional computers can. ![]()
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