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Entanglement Theory Quantum Correlations

Detecting entanglement of states by entries of their density matrices

arXiv

Authors: Xiaofei Qi, Jinchuan Hou

Year

2010

Paper ID

10911

Status

Preprint

Abstract Read

~2 min

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Abstract

For any bipartite systems, a universal entanglement witness of rank-4 for pure states is obtained and a class of finite rank entanglement witnesses is constructed. In addition, a method of detecting entanglement of a state only by entries of its density matrix with respect to some product basis is obtained.

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For any bipartite systems, a universal entanglement witness of rank-4 for pure states is obtained and a class of finite rank entanglement witnesses is constructed.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1010.2078 [2] arXiv https://arxiv.org/abs/1010.2078 [3] Publisher https://arxiv.org/abs/1010.2078

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