利用大失谐腔场中的两个不同原子实现量子相位门

摘要

本文讨论同时囚禁于单模、大失谐腔场中两个不同原子构成的系统, 结论指出: 只要仔细选择两不同原子的跃迁频率差、原子与腔场相互作用时间, 可实现一个快速的量子相位门.这一方案不需要辅助的原子能级.%We have discussed the system that consists of two nonidentical two-level atoms trapped simultaneously in a large-detuned single-mode cavity field in this paper. The results show that it is possible to realize a fast quantum phase gate by using two nonidentical two-level atoms, only if the cavity frequency and difference of two nonidentical atoms transition frequency are selected, and the cavity-atom interaction time is controlled appropriately. The scheme does not require the auxiliary level.