可扩展Ising自旋量子计算机中非共振效应的最小化
Minimization of nonresonant effects in a scalable Ising spin quantum computer
摘要：
基于一维自旋链和相邻自旋之间的伊辛相互作用，分析计算了可扩展固态量子计算机中由大频率偏移跃迁（非共振跃迁）引起的误差.通过外部磁场的均匀梯度来实现自旋的选择性激发。我们计算所有不需要的非共振跃迁的概率与翻转的每个自旋与非共振频率和翻转的两个自旋：一个共振和一个非共振频率。结果表明，这些误差随外加磁场梯度的变化而振荡。选择该梯度的最佳值可以使这些误差减少50%。
英文摘要：
The errors caused by the transitions with large frequency offsets (nonresonant transitions) are calculated analytically for a scalable solid-state quantum computer based on a one-dimensional spin chain with Ising interactions between neighboring spins. Selective excitations of the spins are enabled by a uniform gradient of the external magnetic field. We calculate the probabilities of all unwanted nonresonant transitions associated with the flip of each spin with nonresonant frequency and with flips of two spins: one with resonant and one with nonresonant frequencies. It is shown that these errors oscillate with changing the gradient of the external magnetic field. Choosing the optimal values of this gradient allows us to decrease these errors by 50%.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
