Concurrence vectors for entanglement of high-dimensional
systems

doi:10.1007/s11467-008-0022-2

Front. Phys.

2008, Vol. 3

Issue (3) : 250-257 https://doi.org/10.1007/s11467-008-0022-2

Concurrence vectors for entanglement of high-dimensional systems

LI You-quan, ZHU Guo-qiang

Zhejiang Institute of Modern Physics, Zhejiang University;

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Abstract The concurrence vectors are proposed by employing the fundamental representation of A_n Lie algebra, which provides a clear criterion to evaluate the entanglement of bipartite systems of arbitrary dimension. Accordingly, a state is separable if the norm of its concurrence vector vanishes. The state vectors related to SU(3) states and SO(3) states are discussed in detail. The sign situation of nonzero components of concurrence vectors of entangled bases presents a simple criterion to judge whether the whole Hilbert subspace spanned by those bases is entangled, or there exists an entanglement edge. This is illustrated in terms of the concurrence surfaces of several concrete examples.

Issue Date: 05 September 2008

Cite this article:

LI You-quan,ZHU Guo-qiang. Concurrence vectors for entanglement of high-dimensional systems[J]. Front. Phys. , 2008, 3(3): 250-257.

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https://academic.hep.com.cn/fop/EN/10.1007/s11467-008-0022-2
https://academic.hep.com.cn/fop/EN/Y2008/V3/I3/250

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