In this paper, we study the concurrence of arbitrary-dimensional tripartite quantum states. An explicit operational lower bound of concurrence is obtained in terms of the concurrence of substates. A given example shows that our lower bound may improve the well-known existing lower bounds of concurrence. The significance of our result is to get a lower bound when we study the concurrence of arbitrary $$m\otimes n\otimes l$$ m ⊗ n ⊗ l -dimensional tripartite quantum states.
Quantum Information Processing – Springer Journals
Published: Jun 21, 2016
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