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Marcel Bergmann

Marcel Bergmann former MSc student


See also arxiv

M. Bergmann, O. Gühne
Entanglement criteria for Dicke states
Journal of Physics A: Mathematical and Theoretical 46, 385304 (2013), arXiv:1305.2818

Dicke states are a family of multi-qubit quantum states with interesting entanglement properties and have been observed in many experiments. We construct entanglement witnesses for detecting genuine multiparticle entanglement in the vicinity of these states. We use the approach of PPT mixtures to derive the conditions analytically. For nearly all cases, our criteria are stronger than all conditions previously known.

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