摘要
论文以溶于重水的胞嘧啶中的两个氢的核自旋作为量子比特 ,直接从热平衡态开始进行Arvind算法 ,得到了预期结果 ;在同核系统中实验实现了Arvind算法 .谱图中线形扭曲和误差主要是由于频偏效应和选择脉冲的不完美 .了解和发展在同核系统中实现核磁共振量子计算的技术 ,将有助于我们实验实现需要多个比特的量子计算 ,更好的理解量子计算 .
Recently Arvind and Mukunda have given a quantum algorithm distinguishing the odd and even nature of a given binary function, which do not need to prepare a pseudo-pure state and need only one experiment to get the output. Preparing a pseudo-pure state costs a lot; so bypassing it is very meaningful for NMR quantum computation. The algorithm was implemnted on a two-hydrogen homonuclear spin system with the expected result, which confirmed the algorithm experimentally.
基金
SupportedbyTheNationalNaturealScienceFoundationoftheChina (19875 0 5 0 ,10 0 75 0 41and 10 0 75 0 44 )andtheScienceFoundationofChineseAcademyofScience
