摘要
用囚禁冷离子制备量子可控非门包括3次连续激光脉冲操作.分析了制备过程中的纠缠动力学和纠缠度随时间的变化规律.关于纠缠度的计算结果表明,在第1和第3步激光操作过程中离子内外态无纠缠,在第2步激光操作中离子内外态具有较强的纠缠,并呈现出一定的周期性.
Generation of quantum controlled-NOT gates consists of sequentially applying three laser pulses to trapped cold ions. The entanglement dynamics during the generation of quantum controlled- NOT gates and the variation in entanglement degrees with time were analyzed. The results show that there is not entanglement between external state and internal state of trapped cold ions in the first and third laser pulses, and there is strong periodic entanglement in the second laser pulse.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2008年第2期264-269,共6页
Journal of Southwest Jiaotong University
关键词
囚禁冷离子
量子可控非门
纠缠动力学
纠缠度
trapped cold ion
quantum controlled-NOT gate
entanglement dynamics
entanglement degree
