A note on lower bounds of concurrence for arbitrary dimensional bipartite quantum states
arXiv:2503.16291 · doi:10.1088/1555-6611/adbadd
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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