4.6 Article

Tighter monogamy relations in multiqubit systems

Journal

PHYSICAL REVIEW A
Volume 97, Issue 3, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.97.032336

Keywords

-

Funding

  1. NSF of China [11675113]
  2. Research Foundation for Youth Scholars of Beijing Technology and Business University [QNJJ2017-03]
  3. Scientific Research General Program of Beijing Municipal Commission of Education [KM201810011009]

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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 alpha 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.

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