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arXiv:1905.09518 · Journal of Physics B Atomic Molecular and Optical Physics

Distributed quantum information processing via single atom driving

Jing-Xin Liu, Jun-Yao Ye, Lei-Lei Yan, Shi-Lei Su, Mang Feng

Published Nov 19, 2019• 6 citations
arXivHTMLPDF

Abstract

Abstract We propose an unconventional scheme for quantum entangled state distribution (QESD) and quantum state transfer (QST) based on a fiber–cavity–atom system, in which three atoms are confined, respectively, in three bimodal cavities connected with each other by optical fibers. The key feature of the scheme is the virtual excitation of photons, which yields QESD and QST between the two atoms in the edge cavities conditioned on one-step operation only on the atom in the middle cavity. No actual operation is performed on the two atoms in the edge cavities throughout the scheme. Robustness of the scheme to operational imperfection and dissipation is discussed and the results show that system fidelity is mostly above 95%. Finally, the experimental feasibility is justified using laboratory-available values.

DOI
10.1088/1361-6455/ab58f6

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