Work

Use of composite rotations to correct systematic errors in NMR quantum computation

Year: 2000

Type: article

Abstract: We implement an ensemble quantum counting algorithm on three NMR spectrometers with 1 H resonance frequencies of 500, 600 and 750 MHz. At higher frequencies, the results deviate markedly from naive theoretical predictions. These systematic errors can be attributed almost entirely to off-resonance effects, which can be substantially corrected for using fully compensating composite rotation pulse sequences originally developed by Tycko. We also derive an analytic expression for generating such sequences with arbitrary rotation angles.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/2/1/006

Authors: H K Cummins, J A Jones

Institution: University of Oxford

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funders: Natural Sciences and Engineering Research Council of Canada, Medical Research Council, Engineering and Physical Sciences Research Council, Biotechnology and Biological Sciences Research Council