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Quantum Information Processing
Erschienen in: Quantum Information Processing 6/2015

01.06.2015

Realizing an efficient fusion gate for W states with cross-Kerr nonlinearities and QD-cavity coupled system

verfasst von: Na Li, Jie Yang, Liu Ye

Erschienen in: Quantum Information Processing | Ausgabe 6/2015

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Abstract

We propose a new scheme for fusing two arbitrary-size photonic W states encoded by polarizations to generate a larger W state. With the help of cross-Kerr nonlinearities and a quantum dot in an optical cavity (QD-cavity coupled system), we can realize the fusion of W states with a high success probability. In addition, the scheme does not need any ancillary photon, and it can also be applied to fuse two Bell states. The scheme can be realized with current experimental technology.
Vorheriger Artikel Effective scheme for -state fusion with weak cross-Kerr nonlinearities
Nächster Artikel Analytical solutions and criteria for the quantum discord of two-qubit X-states

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Metadaten
Titel
Realizing an efficient fusion gate for W states with cross-Kerr nonlinearities and QD-cavity coupled system
verfasst von
Na Li
Jie Yang
Liu Ye
Publikationsdatum
01.06.2015
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 6/2015
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-0977-1

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