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arXiv · 1602.02331

Entanglement concentration for concatenated Greenberger-Horne-Zeiglinger state with feasible linear optics

Yu-Bo Sheng·Chang-Cheng Qu·Lan Zhou
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Abstract

The concatenated Greenberger-Horne-Zeiglinger (C-GHZ) state which is a new type of logic-qubit entanglement has attracted a lot of attentions recently. We present a feasible entanglement concentration protocol (ECP) for logic-qubit entanglement. This ECP is based on the linear optics, and it does not know the initial coefficients of the less-entangled C-GHZ state. This protocol can be extended to arbitrary C-GHZ state. This protocol may be useful in future quantum information processing tasks.

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Yu-Bo Sheng, Chang-Cheng Qu, Lan Zhou. 2016-02-07. Entanglement concentration for concatenated Greenberger-Horne-Zeiglinger state with feasible linear optics. https://arxiv.org/abs/1602.02331

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