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arXiv · 2602.21471

On fully entangled fraction of arbitrary $d\otimes d$ quantum states

Xue-Na Zhu·Gui Bao·Ming Li·Ming-Jing Zhao·Shao-Ming Fei
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Abstract

We study the fully entangled fraction of quantum states based on the Bloch representation of density matrices. Analytical upper bounds on the fully entangled fraction are obtained for arbitrary $d\otimes d$ bipartite systems. The fully entangled fractions for classes of $d\otimes d$ quantum states are analytically derived. Detailed examples are given to illustrate the advantages of our results.

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Xue-Na Zhu, Gui Bao, Ming Li, Ming-Jing Zhao, Shao-Ming Fei. 2026-02-25. On fully entangled fraction of arbitrary $d\otimes d$ quantum states. https://doi.org/10.1016/j.physleta.2026.131324

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