4.8 Article

Remote preparation of an atomic quantum memory

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PHYSICAL REVIEW LETTERS
卷 98, 期 5, 页码 -

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AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.98.050504

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Storage and distribution of quantum information are key elements of quantum information processing and future quantum communication networks. Here, using atom-photon entanglement as the main physical resource, we experimentally demonstrate the preparation of a distant atomic quantum memory. Applying a quantum teleportation protocol on a locally prepared state of a photonic qubit, we realized this so-called remote state preparation on a single, optically trapped Rb-87 atom. We evaluated the performance of this scheme by the full tomography of the prepared atomic state, reaching an average fidelity of 82%.

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