不同光学腔中远距离原子间量子相位门的实现(英文)  

Conditional quantum controlled-phase gate between distant atoms in optical cavities

作　　者：樊洋[1] 李定国[1] 

机构地区：[1]海军工程大学理学院,湖北武汉430033

出　　处：《量子电子学报》2010年第5期554-557,共4页Chinese Journal of Quantum Electronics

摘　　要：提出了一个实现处在不同光学腔中的远距离原子之间的量子受控相位门方案,通过利用光子的稳定性和原子-光子在光学腔中的强耦合作用,得到了不同原子间的幺正演化操作。该方案不受腔中光子衰减和原子自发辐射产生的消相干影响,使受控相位门操作具有高保真度。A scheme is proposed to implement a quantum controlled-phase gate between two four-level atoms inside the different optical cavities. The scheme combines the advantage of scalability from the photon and power of strong atom-photon coupling, which yields the desired unitary evolution operation. The scheme is immune to decoherence due to cavity photon decay and atomic spontaneous emission, and the operation is implemented probabilistically with a very high fidelity

关 键 词：量子光学 受控相位门 腔量子电动力学 消相干 

分 类 号：O431.2[机械工程—光学工程]