Journal
ENTROPY
Volume 22, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/e22010062
Keywords
entanglement; negativity
Categories
Funding
- Waseda University [2019C-256]
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In the general framework of d1xd2mixed states, we derive an explicit bound for bipartite negative partial transpose (NPT) entanglement based on the mixedness characterization of the physical system. The derived result is very general, being based only on the assumption of finite dimensionality. In addition, it turns out to be of experimental interest since some purity-measuring protocols are known. Exploiting the bound in the particular case of thermal entanglement, a way to connect thermodynamic features to the monogamy of quantum correlations is suggested, and some recent results on the subject are given a physically clear explanation.
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