Prospects for fast Rydberg gates on an atom chip
Abstract
Atom chips are a promising candidate for a scalable architecture for quantum information processing provided a universal set of gates can be implemented with high fidelity. The difficult part in achieving universality is the entangling two-qubit gate. We consider a Rydberg phase gate for two atoms trapped on a chip and employ optimal control theory to find the shortest gate that still yields a reasonable gate error. Our parameters correspond to a situation where the Rydberg blockade regime is not yet reached. We discuss the role of spontaneous emission and the effect of noise from the chip surface on the atoms in the Rydberg state.
Cite
@article{arxiv.1104.2739,
title = {Prospects for fast Rydberg gates on an atom chip},
author = {Matthias M. Müller and Harald R. Haakh and Tommaso Calarco and Christiane P. Koch and Carsten Henkel},
journal= {arXiv preprint arXiv:1104.2739},
year = {2015}
}
Comments
20 pages, 10 figures, submitted to special issue "Quantum Information with Neutral Particles" of "Quantum Information Processing"