Quantifying entanglement of arbitrary-dimensional multipartite pure states in terms of the singular values of coefficient matrices
Quantifying entanglement of arbitrary-dimensional multipartite pure states in terms of the singular values of coefficient matrices
复制标题
用系数矩阵的奇异值量化任意维多部分纯态的纠缠
DOI:
10.1103/physreva.87.042335
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发表时间:
2013-04
影响因子:
2.9
通讯作者:
Long, Guilu
中科院分区:
文献类型:
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作者:
Li, Hui;Wang, Shuhao;Cui, Jianlian;Long, Guilu
The entanglement quantification and classification of multipartite quantum states are two important research fields in quantum information. In this work, we study the entanglement of arbitrary-dimensional multipartite pure states by looking at the averaged partial entropies of various bipartite partitions of the system, namely, the so-called Manhattan distance ($l_1$ norm) of averaged partial entropies (MAPE), and it is proved to be an entanglement measure for pure states. We connected the MAPE with the coefficient matrices, which are important tools in entanglement classification and reexpressed the MAPE for arbitrary-dimensional multipartite pure states by the nonzero singular values of the coefficient matrices. The entanglement properties of the $n$-qubit Dicke states, arbitrary-dimensional Greenberger-Horne-Zeilinger states, and $D_3^n$ states are investigated in terms of the MAPE, and the relation between the rank of the coefficient matrix and the degree of entanglement is demonstrated for symmetric states by two examples.
DOI:
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发表时间:
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期刊:
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影响因子:
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作者:
通讯作者:
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DOI:
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发表时间:
2004
期刊:
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影响因子:
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作者:
L. Sehgal;J. V. Leusen
通讯作者:
L. Sehgal;J. V. Leusen
DOI:
10.1017/cbo9780511976667.023
发表时间:
2010-12
期刊:
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影响因子:
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作者:
Nikolay Raychev;I. Chuang
通讯作者:
Nikolay Raychev;I. Chuang