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
复制
发表时间:
2008-06
影响因子:
1
通讯作者:
Luo, Shunlong
Luo, Shunlong
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Luo, Shunlong

文献摘要

参考文献

相似文献

通过把量子态看作是通信信道,并利用互信息定量表示的可观测的相关性,我们引入了一个包括形成纠缠作为一个特殊实例的纠缠度量层次。我们比较了最大和最小的措施,并指出最小措施的概念优势的纠缠形成。我们揭示了形成纠缠的一个奇怪的特征,表明它可以超过量子互信息,这通常被认为是总相关性的理论度量。这将形成的纠缠置于一个更广泛的场景中,突出了它与纯态系综的特殊性,并引入了一个具有内在信息意义的竞争性定义。
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.
DOI: 10.1007/s00220-003-0981-7
发表时间: 2004-04
影响因子: 2.4
作者:
P. Shor
通讯作者: P. Shor
DOI: 10.1002/j.1538-7305.1948.tb01338.x
发表时间: 1948-01-01
影响因子: --
作者:
SHANNON, CE
通讯作者: SHANNON, CE
DOI: 10.1103/physreva.76.032327
发表时间: 2007-09
期刊: Physical Review A
影响因子: 2.9
作者:
Nan Li;S. Luo
通讯作者: Nan Li;S. Luo
DOI: 10.1103/physreva.64.062307
发表时间: 2000-10
期刊: Physical Review A
影响因子: 2.9
作者:
K. Vollbrecht;R. Werner
通讯作者: K. Vollbrecht;R. Werner
DOI: 10.1002/j.1538-7305.1948.tb00917.x
发表时间: 1948-01-01
影响因子: --
作者:
SHANNON, CE
通讯作者: SHANNON, CE