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Purification and Analysis of the Error of Controlled-Not Operation in an Ion Trap

Feng Mang Zhu Xiwen Fang Ximing Gao Kelin Shi Lei (Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071) (Received 23 June 1998; revised  
The error of the quantum controlled not operation in an ion trap is treated. By introducing a measurement of projection, the error can be reduced to be a small quantity, or a second order small quantity in some particular cases. The limitation of this scheme is discussed.
【Fund】: 国家自然科学基金!资助课题 (197340 6 0 )
【CateGory Index】: O413
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