Measuring errors in single-qubit rotations by pulsed electron paramagnetic resonance

Measuring errors in single-qubit rotations by pulsed electron paramagnetic resonance

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The ability to measure and reduce systematic errors in single-qubit logic gates is crucial when evaluating quantum computing implementations. We describe pulsed electron paramagnetic resonance (EPR) sequences that can be used to measure precisely even small systematic errors in rotations of electron...

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Κύριοι συγγραφείς: Morton, J, Tyryshkin, A, Ardavan, A, Porfyrakis, K, Lyon, SA, Briggs, G
Μορφή: Journal article
Γλώσσα:English
Έκδοση: 2005
Περιγραφή
Περίληψη:The ability to measure and reduce systematic errors in single-qubit logic gates is crucial when evaluating quantum computing implementations. We describe pulsed electron paramagnetic resonance (EPR) sequences that can be used to measure precisely even small systematic errors in rotations of electron-spin-based qubits. Using these sequences we obtain values for errors in the rotation angle and axis for single-qubit rotations using a commercial EPR spectrometer. We conclude that errors in qubit operations by pulsed EPR are not limiting factors in the implementation of electron-spin-based quantum computers. © 2005 The American Physical Society.

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