论文标题
在超低原子环境中持续的非局部性
Persistent nonlocality in an ultracold-atom environment
论文作者
论文摘要
我们研究了多个两级杂质原子与超低骨气气体耦合的多个量子相关性。我们发现，杂质子系统的环境诱导的动力学可以产生非本地状态，这些状态可抵抗噪声，并在进行投射自旋测量时违反多方的铃铛不平等。在三种杂质的系统中也观察到了真正的多部分非局部性。我们表明，非马克维亚效应以及杂质子系统中的连贯性的持续性对于防止非局部性完全丧失并允许在较长时间内生成和维持非局部相关性至关重要。
We investigate nonlocal quantum correlations arising between multiple two-level impurity atoms coupled to an ultracold bosonic gas. We find that the environment-induced dynamics of the impurity subsystem can generate nonlocal states that are robust against noise and violate a multipartite Bell inequality when projective spin measurements are made. Genuine multipartite nonlocality is also observed in a system of three impurities. We show that non-Markovian effects, and the persistence of coherences in the impurity subsystem, are crucial for preventing complete loss of nonlocality and allow for nonlocal correlations to be generated and maintained for extended periods of time.
