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arXiv:1803.11355 · Physical Review A

Tighter monogamy relations in multiqubit systems

Zhi‐Xiang Jin, Jun Li, Tao Li, Shao-Ming Fei

Published Mar 26, 2018• 74 citations
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Abstract

Monogamy relations characterize the distributions of entanglement in multipartite systems. We investigate monogamy relations related to the concurrence $C$, the entanglement of formation $E$, negativity ${N}_{c}$, and Tsallis-$q$ entanglement ${T}_{q}$. Monogamy relations for the $\ensuremath{\alpha}\mathrm{th}$ power of entanglement have been derived, which are tighter than the existing entanglement monogamy relations for some classes of quantum states. Detailed examples are presented.

DOI
10.1103/physreva.97.032336

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Tighter monogamy relations for the Tsallis-q and Rényi-ααα entanglement in multiqubit systems
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