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Nuclear magnetic resonance implementation of universal quantum gate with constant Hamiltonian evolution

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7 Author(s)
Liu, Wenzhang ; Department of Physics and Key Laboratory for Atomic and Molecular NanoSciences, Tsinghua University, Beijing 100084, People’s Republic of China and Tsinghua National Laboratory for Information Science and Technology, Beijing 100084, People''s Republic of China ; Zhang, Jingfu ; Cao, Ye ; Huo, Wen Yi
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In this letter, we report an experimental demonstration of single-step realization of universal quantum gate in a nuclear magnetic resonance quantum information processor. The scheme uses a constant Hamiltonian evolution and is robust against decoherence. Our work focuses on the implementation of the controlled-NOT gate. Several sets of parameters are obtained and they provide flexibility to suppress decoherence for quantum computation.

Published in:

Applied Physics Letters  (Volume:94 ,  Issue: 6 )