Related papers: A note on lower bounds of concurrence for arbitrary dimensional bipartite quantum states

A note on lower bounds of concurrence for arbitrary dimensional bipartite quantum states

URL: http://arxiv.org/abs/2503.16291v1
Date: Thu, 20 Mar 2025 16:15:21 GMT
Title: A note on lower bounds of concurrence for arbitrary dimensional bipartite quantum states
Authors: Zhi-Bo Chen, Shao-Ming Fei,
Abstract summary: We present analytical lower bounds for both concurrence and 2-concurrence based on the correlation matrices of bipartite quantum states.<n>Compared with other related lower bounds, our approach provides a better estimation of the entanglement, particularly for states with large purity.
Score: 11.522240821077304
License: http://creativecommons.org/publicdomain/zero/1.0/
Abstract: Quantification of quantum entanglement plays a crucial role in the study of quantum information tasks. We present analytical lower bounds for both concurrence and 2-concurrence based on the correlation matrices of bipartite quantum states. Compared with other related lower bounds, our approach provides a better estimation of the entanglement, particularly for states with large purity.

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