摘要
基于光腔中的势阱离子同时与外激光场和腔场发生相互作用的特性,我们提出了一种量子逻辑门的实现方案。在该方案中,量子逻辑门是以离子内态和腔态作为比特,而势阱离子的运动态作为辅助比特始终保持在基态。而且,没有采用Lamb-Dicke近似,因而更容易为实验所实现。
A new scheme is proposed to implement quantum logic gates such as single qubit rotation gate, two qubit controlled-phase gate and controlled-NOT gate, using the method based on a quantum system, which is composed of the one-dimensional trapped-ion motion and a single cavity field mode. In the present scheme, computation basis is composed by the internal ionic state and the cavity state by the connection of motional state. Furthermore, Lamb-Dicke limit is not required.
出处
《量子电子学报》
CAS
CSCD
北大核心
2004年第6期751-756,共6页
Chinese Journal of Quantum Electronics
基金
973子项目(2001CB309300)资助课题
