An approach is proposed to implement the universal quantum gates between the ions confined individually in the separated traps. Instead of the typical adiabatic operations, performed for manipulating the ion-ion coupling, here the switchable couplings between ions are implemented non-adiabatically by using the fast laser pulses. Consequently, the desirable quantum gates between the ions could be implemented by using only a series of laser pulses. The proposal may be conveniently generalized to the quantum computation with the scalable ion-traps.
@article{arxiv.1107.4964,
title = {Quantum gates implementations in the separated ion-traps by fast laser pulses},
author = {Miao Zhang and L. F. Wei},
journal= {arXiv preprint arXiv:1107.4964},
year = {2012}
}