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Liquid Nuclear Magnetic Resonance Implementation of Quantum Computation in Subspace |
| YAO Xi-Wei1,2;XUE Fei3;PANG Wen-Min2;DU Jiang-Feng1,2;ZHOU Xian-Yi1,2;HAN Rong-Dian1,2 |
| 1Department of Modern Physics, University of Science and Technology of China, Hefei 230027
2Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230027
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Cite this article: |
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YAO Xi-Wei, XUE Fei, PANG Wen-Min et al 2006 Chin. Phys. Lett. 23 1996-1999 |
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Abstract Based on the logical labelling method, we prepare an effective pure state in a subsystem of a three spin system via liquid nuclear magnetic resonance technique. Then with this subspace effective pure state we implement the Deutsch--Jozsa algorithm. The tomography for the subspace effective pure state and the corresponding spectrum of the output for the Deutsch--Jozsa algorithm agree with theoretical predictions, which shows that we have successfully implemented the Deutsch--Jozsa algorithm in a subsystem of a nuclear spin system and demonstrated a subspace quantum computation.
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03.67.Lx
82.56.-b
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Published: 01 August 2006
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| PACS: |
03.67.Lx
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(Quantum computation architectures and implementations)
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82.56.-b
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(Nuclear magnetic resonance)
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