dorsal/arxiv
View SchemaHigh Fidelity Single Qubit Operations using Pulsed EPR
| Authors | John J. L. Morton, Alexei M. Tyryshkin, Arzhang Ardavan, Kyriakos Porfyrakis, S. A. Lyon, G. Andrew D. Briggs |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0502119 |
| URL | https://arxiv.org/abs/quant-ph/0502119 |
| DOI | 10.1103/PhysRevLett.95.200501 |
| Journal | Phys. Rev. Lett. 95, 200501 (2005) |
Abstract
Systematic errors in spin rotation operations using simple RF pulses place severe limitations on the usefulness of the pulsed magnetic resonance methods in quantum computing applications. In particular, the fidelity of quantum logic operations performed on electron spin qubits falls well below the threshold for the application of quantum algorithms. Using three independent techniques, we demonstrate the use of composite pulses to improve this fidelity by several orders of magnitude. The observed high-fidelity operations are limited by pulse phase errors, but nevertheless fall within the limits required for the application of quantum error correction.
{
"annotation_id": "d7322009-9311-4666-8244-2d9c33eb278b",
"date_created": "2026-03-02T18:02:13.636000Z",
"date_modified": "2026-03-02T18:02:13.636000Z",
"file_hash": "68ebebdf7048e748d75b71e45c87bdb436ca7b3ed50347103e7a782388e15f9d",
"private": false,
"record": {
"abstract": "Systematic errors in spin rotation operations using simple RF pulses place\nsevere limitations on the usefulness of the pulsed magnetic resonance methods\nin quantum computing applications. In particular, the fidelity of quantum logic\noperations performed on electron spin qubits falls well below the threshold for\nthe application of quantum algorithms. Using three independent techniques, we\ndemonstrate the use of composite pulses to improve this fidelity by several\norders of magnitude. The observed high-fidelity operations are limited by pulse\nphase errors, but nevertheless fall within the limits required for the\napplication of quantum error correction.",
"arxiv_id": "quant-ph/0502119",
"authors": [
"John J. L. Morton",
"Alexei M. Tyryshkin",
"Arzhang Ardavan",
"Kyriakos Porfyrakis",
"S. A. Lyon",
"G. Andrew D. Briggs"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.95.200501",
"journal_ref": "Phys. Rev. Lett. 95, 200501 (2005)",
"title": "High Fidelity Single Qubit Operations using Pulsed EPR",
"url": "https://arxiv.org/abs/quant-ph/0502119"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "3bcc7e2b-9151-40e1-90a1-99838d31e8cb",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}