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Erschienen in: Quantum Information Processing 6/2015

01.06.2015

Effective scheme for \(W\)-state fusion with weak cross-Kerr nonlinearities

verfasst von: Xue Han, Shi Hu, Qi Guo, Hong-Fu Wang, Shou Zhang

Erschienen in: Quantum Information Processing | Ausgabe 6/2015

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Abstract

We propose a effective \(W\)-state fusion scheme with the help of weak cross-Kerr nonlinearities, which can fuse a \(n\)-qubit \(W\) state and a \(m\)-qubit \(W\) state to a \((m+n-1)\)-qubit state without an ancillary photon. Specially, the present scheme can fuse two Bell states to create a three-qubit \(W\) state. We analyze the resource cost and the success probability of the scheme. The analysis shows that the present scheme requires less resource cost compared with the previous ones and can be achieved with high probability under the current experiment technology.

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Metadaten
Titel
Effective scheme for -state fusion with weak cross-Kerr nonlinearities
verfasst von
Xue Han
Shi Hu
Qi Guo
Hong-Fu Wang
Shou Zhang
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/s11128-015-0960-x

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