论文标题
在全球统一操作下，任何两个量子状态都有非零量子不和谐
Any Two Qubit State Has Non Zero Quantum Discord Under Global Unitary Operations
论文作者
论文摘要
量子不一致在分析纠缠范式之外的量子非古老性方面具有重要意义。目前，我们已经探索了全球统一操作在从一个一般两个Qubit零不一致状态中表现出量子不一致方面的有效性。除了出现一些明显的概念之外，诸如绝对经典量子，绝对量子古典状态，更有趣的是，还观察到，以绝对性为特征的一组状态仅包含最大混合状态。因此，这标志着当其他标准方法无法做到这一点时，全球单一操作在范围内从任意两个Qubit状态表现出非经典性的权限的有效性。在这种情况下，已经提供了一组有效的全球一级人员。我们的观察结果在远程状态准备任务中具有直接影响。
Quantum discord is significant in analyzing quantum nonclassicality beyond the paradigm of entanglement. Presently we have explored the effectiveness of global unitary operations in manifesting quantum discord from a general two qubit zero discord state. Apart from the emergence of some obvious concepts such as absolute classical-quantum, absolute quantum-classical states, more interestingly, it is observed that set of states characterized by absoluteness contains only maximally mixed state. Consequently this marks the peak of effectiveness of global unitary operations in purview of manifesting nonclassicality from arbitrary two qubit state when other standard methods fail to do so. Set of effective global unitaries has been provided in this context. Our observations have direct implications in remote state preparation task.
