A brief review of Scott measure as a multipartite entanglement criterion

15 Jun 2019  ·  Haddadi Saeed ·

In recent decades, various multipartite entanglement measures have been proposed by many researchers, with different characteristics. Meanwhile, Scott studied various interesting aspects of multipartite entanglement measures and he has defined a class of related multipartite entanglement measures in an obvious manner... Recently, Jafarpour et al. (Int. J. Quantum Inform. 13, 1550047 2015) have calculated the entanglement quantity of two-dimensional 5-site spin system by means of Scott measure. As it was presented in their calculation Q_{2}>Q_{3}. In this paper, we would like to point out that in the 5-qudit system, Q_{2} does not provide a stronger entanglement than Q_{3}, while there is a simple relation between them. read more

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Quantum Physics