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arXiv:1012.3433 [quant-ph]AbstractReferencesReviewsResources

High fidelity quantum gates via dynamical decoupling

Jacob R. West, Daniel A. Lidar, Bryan H. Fong, Mark F. Gyure

Published 2010-12-15Version 1

Realizing the theoretical promise of quantum computers will require overcoming decoherence. Here we demonstrate numerically that high fidelity quantum gates are possible within a framework of quantum dynamical decoupling. Orders of magnitude improvement in the fidelities of a universal set of quantum gates, relative to unprotected evolution, is achieved over a broad range of system-environment coupling strengths, using recursively constructed (concatenated) dynamical decoupling pulse sequences.

Comments: Slightly expanded form of the journal version. Also includes the supplementary material as an appendix
Journal: Phys. Rev. Lett. 105, 230503 (2010)
Categories: quant-ph
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