We propose an efficient scheme to prepare multipartite entanglement of atomic ensembles trapped in separate cavities. Our scheme has high fidelity even with realistic noise based on the repeat-until-success strategy. By employing the quantum memory of the atomic internal state, the scaling efficiency decreases only with the number of atomic ensembles by a slow polynomial law. Moreover, the atomic ensembles also can function as quantum repeaters, which enable our system to compatible with the current experimental technique for quantum communication using atomic ensembles. © 2010 Elsevier GmbH. All rights reserved.
Zhao, F. (2011). An efficient scheme for preparation of multipartite entanglement of atomic ensembles. Optik, 122(16), 1430–1433. https://doi.org/10.1016/j.ijleo.2010.09.022