Tighter monogamy inequality of Tsallis-q entropy entanglement

Abstract

Abstract:

The monogamy of entanglement is an important property in quantum entanglement，which can be used to characterize the entanglement structure in multipartite systems. Tsallis-q entropy entanglement is a well-known entanglement measures, and the squared Tsallis-q entropy entanglement obeys a monogamy relation with（5-13^1/2）/2≦q≦（5+13^1/2）/2 . A new entanglement monogamy relation is presented when the μ-th power of Tsallis-q entropy entanglement with（5-13^1/2）/2≦q≦（5+13^1/2）/2 is satisfied withμ≧2. It is shown that this monogamy relation is more strict than the monogamy relation of squared Tsallis-q entropy entanglement proposed by Song Wei et al.

Key words: quantum optics, entanglement, monogamy, Tsallis-q entropy entanglement

CLC Number:

O431.2

YUAN Guangming, TANG Shunlei, DONG Minghui, CHEN Li. Tighter monogamy inequality of Tsallis-q entropy entanglement[J]. Chinese Journal of Quantum Electronics, 2020, 37(2): 210-214.

References

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