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

John J.L. Morton; Alexei M. Tyryshkin; Arzhang Ardavan; Kyriakos Porfyrakis; S. A. Lyon; G. Andrew D. Briggs

doi:10.1103/PhysRevA.71.012332

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

John J.L. Morton, Alexei M. Tyryshkin, Arzhang Ardavan, Kyriakos Porfyrakis, S. A. Lyon, G. Andrew D. Briggs

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

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.

Original language	English (US)
Article number	012332
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	71
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.71.012332
State	Published - Jan 1 2005

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.71.012332

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abstract = "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.",

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AU - Lyon, S. A.

AU - Briggs, G. Andrew D.

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AB - 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.

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

Abstract

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