Bounding Quantum Gate Error Rate Based on Reported Average Fidelity
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296 дней – 1 3351:21Опубликовано 8 июля 2016, 0:17
Advances in Quantum Algorithms and Devices: Bounding Quantum Gate Error Rate Based on Reported Average Fidelity
Remarkable experimental advances in quantum computing are exemplified by recent announcements of impressive gate fidelities exceeding 99.9% for single-qubit gates and exceeding 99% for two-qubit gates. These reported high numbers engender optimism that fault-tolerant quantum computing is within reach. Here we convert reported gate fidelity to a bound on worst case quantum gate error rate, which is appropriate to assess progress towards fault-tolerance targets and is greater by orders of magnitude. We prove that this bound scales optimally. Our work demonstrates the huge divide between reported gate fidelities and requisite gate performance.
Remarkable experimental advances in quantum computing are exemplified by recent announcements of impressive gate fidelities exceeding 99.9% for single-qubit gates and exceeding 99% for two-qubit gates. These reported high numbers engender optimism that fault-tolerant quantum computing is within reach. Here we convert reported gate fidelity to a bound on worst case quantum gate error rate, which is appropriate to assess progress towards fault-tolerance targets and is greater by orders of magnitude. We prove that this bound scales optimally. Our work demonstrates the huge divide between reported gate fidelities and requisite gate performance.
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