中文摘要：

将复合绝热通道技术应用于谐相互作用调制的Landau—Zener模型，研究了调制频率和耦合强度在不同的参量条件下系统的跃迁概率，发现这种方法能够有效抑制跃迁概率的非绝热振荡，可以在很大的参数范围内使布居数完全反转，实现超高保真度，将系统的误差降低到10-4以下．

英文摘要：

In quantum information processing, an extreme high fidelity is needed. We apply a composite adiabatic passage （CAP） technique in the Landau-Zener model with harmonic interaction modulation in order to study the transition probability of the system with different model parameters. We find that this method could suppress the non-adiabatic oscillations in the transition probability and reduce the admissible error. This method could also enlarge the parameter regimes of high transition probability. Because of these good results, the Landau-Zener model with harmonic interaction modulation and CAP technique could be potentially important tools for ultrahigh-fidelity quantum information processing.