Measure and detection of genuine multipartite entanglement for tripartite systems

Abstract

It is a computationally hard task to certify genuine multipartite entanglement (GME). We investigate the relation between the norms of the correlation vectors and the detection of GME for tripartite quantum systems. A sufficient condition for GME and an effective lower bound for the GME concurrence are derived. Several examples are considered to show the effectiveness of the criterion and the lower bound of GME concurrence.

6 pages, 4 figures

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Cited by in corpus (3)

• The norms of Bloch vectors and classification of four qudits quantum states
• Quantum Fisher information-based detection of genuine tripartite entanglement
• Distribution of spin correlation strengths in multipartite systems