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arXiv quant-ph/0307067quant-ph
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2 × 2 × n量子系统中的多体纠缠

Multipartite entanglement in 2 x 2 x n quantum systems

Akimasa Miyake, Frank Verstraete

摘要:

在局域滤波操作下,我们对2 × 2 × n(n ≥ 4)量子系统中的多体纠缠态进行了分类.我们发现,存在9个本质上不同的状态类,它们产生了一个五级半序结构,包括著名的Greenberger-Horne-Zeilinger(GHZ)和W类的3量子比特。特别地,从一个最大纠缠态可以确定性地制备出所有的2 × 2 × n态,并讨论了纠缠交换等应用.

英文摘要:

We classify multipartite entangled states in the 2 x 2 x n (n >= 4) quantum system, for example the 4-qubit system distributed over 3 parties, under local filtering operations. We show that there exist nine essentially different classes of states, and they give rise to a five-graded partially ordered structure, including the celebrated Greenberger-Horne-Zeilinger (GHZ) and W classes of 3 qubits. In particular, all 2 x 2 x n-states can be deterministically prepared from one maximally entangled state, and some applications like entanglement swapping are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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