High Fidelity Single-Qubit Gates Using Non-adiabatic Rapid Passage

Details High Fidelity Single-Qubit Gates Using Non-adiabatic Rapid Passage High Fidelity Single-Qubit Gates Using Non-adiabatic Rapid Passage

2006-10-20

arxiv.org/abs/quant-ph/0610167v2

Quantum Information and Computation vol. 7, 594 (2007)

Physics

Quantum Physics

16 pages; further discussion added on quantum interferences and sweep parameter precision

Scientific paper

Numerical simulation results are presented which suggest that a class of non-adiabatic rapid passage sweeps first realized experimentally in 1991 should be capable of implementing a set of quantum gates that is universal for one-qubit unitary operations and whose elements operate with error probabilities per operation P < 10^{-4}. The sweeps are non-composite and generate controllable quantum interference effects which allow the one-qubit gates produced to operate non-adiabatically while maintaining high accuracy. The simulations suggest that the one-qubit gates produced by these sweeps show promise as possible elements of a fault-tolerant scheme for quantum computing.

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