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Optica Publishing Group
  • The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting
  • OSA Technical Digest (online) (Optica Publishing Group, 2013),
  • paper W6.51
  • https://doi.org/10.1364/QIM.2013.W6.51

X-matrices as a platform for studying multipartite entanglement

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Abstract

We derive an algebraic formula for the genuinely multipartite entanglement of a N-qubit X state. The entanglement dynamics of a N-qubit GHZ-state is a decoherence scenario. We also show that the mixedness of a state limits its entanglement, and the critical mixedness, beyond which no X-state is entangled, increases with the number of qubits.

© 2013 Optical Society of America

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