Demonstration of Quantum Entanglement Control Using Nuclear Magnetic Resonance

XIE Jing-Yi; ZHANG Jing-Fu; DENG Zhi-Wei; LU Zhi-Heng

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Demonstration of Quantum Entanglement Control Using Nuclear Magnetic Resonance

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@@ With the two forms of the quantum entanglement control, the quantum entanglement swapping and preservation are demonstrated in a three-qubit nuclear magnetic resonance quantum computer. The pseudopure state is prepared to represent the quantum entangled states through macroscopic signals. Entanglement swapping is directly realized by a swap operation. By controlling the interactions between the system and its environment,we can preserve an initial entangled state for a longer time. The experimental results are in agreement with the experiment.

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《中国物理快报：英文版》 |2004年第12期|2343-2346|共4页
作者
XIE Jing-Yi; ZHANG Jing-Fu; DENG Zhi-Wei; LU Zhi-Heng;
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Key Laboratory for Beam Technology and Material Modification of Ministry of Education,Beijing Normal University, Beijing 100875;

Department of Materials Science and Engineering, and Institute of Low Energy Nuclear Physics,Beijing Normal University, Beijing 100875;

Department of Physics, Beijing Normal University, Beijing 100875;

Testing and Analytical Centre, Beijing Normal University, Beijing 100875;

Department of Physics, Beijing Normal University, Beijing 100875;

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中图分类物理学;
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Demonstration of Quantum Entanglement Control Using Nuclear Magnetic Resonance

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