We propose a method for scaling trapped ions for large-scale quantum computation and communication based on a probabilistic ion-photon mapping. Deterministic quantum gates between remotely located trapped ions can be achieved through detection of spontaneously-emitted photons, accompanied by the local Coulomb interaction between neighboring ions. We discuss gate speeds and tolerance to experimental noise for different probabilistic entanglement schemes.
@article{arxiv.quant-ph/0401020,
title = {Scalable Trapped Ion Quantum Computation with a Probabilistic Ion-Photon Mapping},
author = {L. -M. Duan and B. B. Blinov and D. L. Moehring and C. Monroe},
journal= {arXiv preprint arXiv:quant-ph/0401020},
year = {2007}
}