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NMR quantum computation with indirectly coupled gates

David Collins, K. W. Kim, W. C. Holton, H. Sierzputowska-Gracz, E. O. Stejskal

quant-pharXiv:quant-ph/9910006

Abstract

An NMR realization of a two-qubit quantum gate which processes quantum information indirectly via couplings to a spectator qubit is presented in the context of the Deutsch-Jozsa algorithm. This enables a successful comprehensive NMR implementation of the Deutsch-Jozsa algorithm for functions with three argument bits and demonstrates a technique essential for multi-qubit quantum computation.

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