Morton, JJL;
Porfyrakis, K;
Briggs, GAD;
Tyryshkin, AM;
Lyon, SA;
Ardavan, A;
(2005)
High fidelity single qubit operations using pulsed electron paramagnetic resonance.
Physical Review Letters
, 95
(20)
, Article 200501. 10.1103/PhysRevLett.95.200501.
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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. © 2005 The American Physical Society.
| Type: | Article |
|---|---|
| Title: | High fidelity single qubit operations using pulsed electron paramagnetic resonance |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.200501 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.200501 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1362729 |
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