Entanglement measures based on observable correlations
Entanglement measures based on observable correlations
复制标题
基于可观察相关性的纠缠测量
DOI:
10.1007/s11232-008-0075-y
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发表时间:
2008-06
影响因子:
1
通讯作者:
Luo, Shunlong
中科院分区:
文献类型:
--
作者:
Luo, Shunlong
By regarding quantum states as communication channels and using observable correlations quantitatively expressed by mutual information, we introduce a hierarchy of entanglement measures that includes the entanglement of formation as a particular instance. We compare the maximal and minimal measures and indicate the conceptual advantages of the minimal measure over the entanglement of formation. We reveal a curious feature of the entanglement of formation by showing that it can exceed the quantum mutual information, which is usually regarded as a theoretical measure of total correlations. This places the entanglement of formation in a broader scenario, highlights its peculiarity in relation to pure-state ensembles, and introduces a competing definition with intrinsic informational significance.
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影响因子:
2.4
作者:
P. Shor
通讯作者:
P. Shor
影响因子:
--
作者:
SHANNON, CE
通讯作者:
SHANNON, CE
影响因子:
2.9
作者:
Nan Li;S. Luo
通讯作者:
Nan Li;S. Luo
影响因子:
2.9
作者:
K. Vollbrecht;R. Werner
通讯作者:
K. Vollbrecht;R. Werner
影响因子:
--
作者:
SHANNON, CE
通讯作者:
SHANNON, CE