Single qubit gates by selective excitation with Jump and Return sequences

Details Single qubit gates by selective excitation with Jump and Return sequences Single qubit gates by selective excitation with Jump and Return sequences

2006-06-26

arxiv.org/abs/quant-ph/0606220v2

Physical Review A 74, 052324 (2006)

Physics

Quantum Physics

Revised and extended at request of referee; now in press at Physical Review A. 6 pages RevTex including 3 figures

Scientific paper

10.1103/PhysRevA.74.052324

We discuss the implementation of frequency selective rotations using sequences of hard pulses and delays. These rotations are suitable for implementing single qubit gates in Nuclear Magnetic Resonance (NMR) quantum computers, but can also be used in other related implementations of quantum computing. We also derive methods for implementing hard pulses in the presence of moderate off-resonance effects, and describe a simple procedure for implementing a hard 180 degree rotation in a two spin system. Finally we show how these two approaches can be combined to produce more accurate frequency selective rotations.

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