H K Cummins and J A Jones 2000 New J. Phys. 2 6 doi:10.1088/1367-2630/2/1/006
H K Cummins
and J A Jones
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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.
03.67.Lx Quantum computation architectures and implementations
Issue 1 (March 2000)
Received 18 January 2000
Published 30 March 2000
H K Cummins and J A Jones 2000 New J. Phys. 2 6
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