There has been much interest in developing methods for transferring quantum information. We discuss a way to transfer quantum information between two trapped ions through a wire. The motion of a trapped ion induces oscillating charges in the trap electrodes. By sending this current to the electrodes of a nearby second trap, the motions of ions in the two traps are coupled. We investigate the electrostatics of a set-up where two separately trapped ions are coupled through an electrically floating wire. We also discuss experimental issues, including possible sources of decoherence.
@article{arxiv.0903.3834,
title = {Wiring up trapped ions to study aspects of quantum information},
author = {N. Daniilidis and T. Lee and R. Clark and S. Narayanan and H. Häffner},
journal= {arXiv preprint arXiv:0903.3834},
year = {2015}
}