Tighter monogamy relations in multiqubit systems

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

Phys. Rev. A 97, 032336 – Published 26 March 2018

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 $α th$ 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.

Received 28 January 2018

DOI:https://doi.org/10.1103/PhysRevA.97.032336

Physics Subject Headings (PhySH)

Quantum entanglement

Quantum Information, Science & Technology

Authors & Affiliations

Zhi-Xiang Jin^1,*, Jun Li^1,†, Tao Li^2,‡, and Shao-Ming Fei^1,3,§

¹School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
²School of Science, Beijing Technology and Business University, Beijing 100048, China
³Max-Planck-Institute for Mathematics in the Sciences, Leipzig 04103, Germany

^*Corresponding author: jzxjinzhixiang@126.com
^†Corresponding author: lijunnl123@163.com
^‡Corresponding author: litao@btbu.edu.cn
^§Corresponding author: feishm@mail.cnu.edu.cn

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Vol. 97, Iss. 3 — March 2018

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