Scientists develop first quantum algorithm to characterize noise across large systems

EurekAlert  August 10, 2020
Ability to build large-scale quantum computers depends on the ability to characterize quantum noise reliably and efficiently with high precision. An international team of researchers (Australia, USA – Yale University, Canada) has developed a protocol and implemented it in a 14-qubit superconducting quantum architecture. They show how to construct a quantum noise correlation matrix allowing the easy visualization of correlations between all pairs of qubits, enabling the discovery of long-range two-qubit correlations in the 14-qubit device. Their results pave the way for noise metrology in next-generation quantum devices, calibration in the presence of crosstalk, and customized fault-tolerance protocols that can greatly reduce the overhead in a quantum computation…read more. TECHNICAL ARTICLE

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