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Quantum Information Processing
Erschienen in: Quantum Information Processing 1/2016

01.01.2016

Transferring multipartite entanglement among different cavities

verfasst von: Qi-Ping Su, Tong Liu, Chui-Ping Yang

Erschienen in: Quantum Information Processing | Ausgabe 1/2016

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Abstract

The transfer of quantum entanglement (or quantum coherence) is not only fundamental in quantum mechanics but also important in quantum information processing. We here propose a way to achieve the coherent transfer of W-class entangled states of qubits among different cavities. Because no photon is excited in each cavity, decoherence caused by the photon decay is suppressed during the transfer. In addition, only one coupler qubit and one operational step are needed and no classical pulses are used in this proposal; thus, the engineering complexity is much reduced and the operation is greatly simplified. We further give a numerical analysis showing that high-fidelity transfer of a three-qubit W state is feasible within the present circuit QED technique. The proposal can be applied to a wide range of physical implementations with various qubits such as quantum dots, nitrogen vacancy centers, atoms, and superconducting qubits.
Vorheriger Artikel Atom–photon entanglement beyond the multi-photon resonance condition
Nächster Artikel Local quantum uncertainty in two-qubit separable states: a case study

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Metadaten
Titel
Transferring multipartite entanglement among different cavities
verfasst von
Qi-Ping Su
Tong Liu
Chui-Ping Yang
Publikationsdatum
01.01.2016
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 1/2016
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-1153-3

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