Quantum computation with ions in thermal motion
Quantum Physics
2009-10-31 v2
Abstract
We propose an implementation of quantum logic gates via virtual vibrational excitations in an ion trap quantum computer. Transition paths involving unpopulated, vibrational states interfere destructively to eliminate the dependence of rates and revolution frequencies on vibrational quantum numbers. As a consequence quantum computation becomes feasible with ions whos vibrations are strongly coupled to a thermal reservoir.
Cite
@article{arxiv.quant-ph/9810039,
title = {Quantum computation with ions in thermal motion},
author = {Anders Sorensen and Klaus Molmer},
journal= {arXiv preprint arXiv:quant-ph/9810039},
year = {2009}
}
Comments
5 pages, including 5 figures. To appear in Phys. Rev. Lett. New version demonstrates that our gate is insensitive to heating and shows how to perform a control-not with our gate. Improved numerical simulations