Quantum networks based on atomic qubits and scattered photons provide a promising way to build a large-scale quantum information processor. We review quantum protocols for generating entanglement and operating gates between two distant atomic qubits, which can be used for constructing scalable atom--photon quantum networks. We emphasize the crucial role of collecting light from atomic qubits for large-scale networking and describe two techniques to enhance light collection using reflective optics or optical cavities. A brief survey of some applications for scalable and efficient atom--photon networks is also provided.
@article{arxiv.0906.1032,
title = {Protocols and Techniques for a Scalable Atom--Photon Quantum Network},
author = {L. Luo and D. Hayes and T. A. Manning and D. N. Matsukevich and P. Maunz and S. Olmschenk and J. D. Sterk and C. Monroe},
journal= {arXiv preprint arXiv:0906.1032},
year = {2015}
}