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arXiv · 2307.08914

The entanglement criteria based on equiangular tight frames

Xian Shi
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Abstract

Finite tight frames play an important role in miscellaneous areas, including quantum information theory. Here we apply a class of tight frames, equiangular tight frames, to address the problem of detecting the entanglement of bipartite states. Here we derive some entanglement criteria based on positive operator-valued measurements built from equiangular tight frames. We also present a class of entanglement witnesses based on the equiangular tight frames. At last, we generalize the entanglement criterion for bipartite systems to multipartite systems.

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Xian Shi. 2023-07-18. The entanglement criteria based on equiangular tight frames. https://arxiv.org/abs/2307.08914

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