基于离子阱系统制备三离子Singlet态

The Preparation of Three- ion Singlet State Via Ion-trapped System

Singlet态是一种特殊的高维纠缠态,有着特殊的性质和实际应用.基于离子阱系统提出一种制备三离子singlet态的简便方案.在方案中以3个离子的直积态作为初态来制备三离子singlet态,且在制备singlet态的整个过程中,不需要离子内态与振动质心模之间的能量交换,使得系统对振动质心模的耗散影响较小.最后,还讨论了其实验可行性.

The singlet state is a special type of high-dimensional entangled states, which has some special properties and applications. A simple scheme is proposed for the preparation of threeion singlet state via ion-trapped system. In the present scheme, it can generate the three-ion singlet state with three single ions product states as the initial state, and in the whole procedure, there is no energy exchange between ionic internal states and vibrational modes so as to reduce decoherence due to phonons＇ decay. Finally, the experimental feasibility of our proposal is discussed.