论文标题
最大隐藏量子相关性的出现及其与耗散两Q量系统中的过滤概率的权衡
Emergence of maximal hidden quantum correlations and its trade-off with the filtering probability in dissipative two-qubit systems
论文作者
论文摘要
我们研究了量子CHSH非局部性,$ \ rm f_3 $ steering的行为,以及在交互的两Q量化耗散系统中传送的有用性。我们显示了可以通过局部过滤操作提取这三个量子相关性的机制,尽管没有在裸露的自然时间演变中显示它们。 Moreover, we show the existence of local hidden state (LHS) and local hidden variable (LHV) models for some states during the dynamics and thus, showing that apparently-useless physical systems could still exhibit quantum correlations, which are hidden from us, but that can still be revealed by means of local filtering operations and therefore, displaying the phenomenon of \emph{hidden} quantum correlations.我们此外表明,实际上存在可以提取的量子相关量与可以实现此类协议的过滤概率之间的权衡。从理论的角度来看,这种权衡的存在对通过局部过滤操作提取量子相关的基本限制。另一方面,从实际的角度来看,这里提出的结果决定了应投入的资源量,以提取这种最大的隐藏量子相关性。
We investigate the behaviour of quantum CHSH-nonlocality, $\rm F_3$-steering, and usefulness for teleportation in an interacting two-qubit dissipative system. We show regimes where these three quantum correlations can be extracted by means of local filtering operations, despite them not being displayed in the bare natural time evolution. Moreover, we show the existence of local hidden state (LHS) and local hidden variable (LHV) models for some states during the dynamics and thus, showing that apparently-useless physical systems could still exhibit quantum correlations, which are hidden from us, but that can still be revealed by means of local filtering operations and therefore, displaying the phenomenon of \emph{hidden} quantum correlations. We furthermore show that there actually exists a trade-off between the amount of quantum correlations which can be extracted and the filtering probability with which such protocol can be implemented. From a theoretical point of view, the existence of such trade-off imposes a fundamental limit to the extraction of quantum correlations by local filtering operations. From a practical point of view on the other hand, the results here presented determine the amount of resources that should be invested in order to extract such maximal hidden quantum correlations.