We present a detailed analysis and design of a neutral atom quantum logic device based on atoms in optical traps interacting via dipole-dipole coupling of Rydberg states. The dominant physical mechanisms leading to decoherence and loss of fidelity are enumerated. Our results support the feasibility of performing single and two-qubit gates at MHz rates with decoherence probability and fidelity errors at the level of 10−3 for each operation. Current limitations and possible approaches to further improvement of the device are discussed.
@article{arxiv.quant-ph/0502051,
title = {Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms},
author = {M. Saffman and T. G. Walker},
journal= {arXiv preprint arXiv:quant-ph/0502051},
year = {2011}
}