Dynamical creation and detection of entangled many-body states in a chiral atom chain
Dynamical creation and detection of entangled many-body states in a chiral atom chain
复制标题
DOI：
10.1088/1367-2630/ab4f50
复制
发表时间：
2019-11-01
影响因子：
3.3
通讯作者：
Lesanovsky, Igor
中科院分区：
文献类型：
--
作者：
Buonaiuto, Giuseppe;Jones, Ryan;Lesanovsky, Igor
具有手征相互作用的开放量子系统可以通过将原子耦合到光子波导或光纤中的导波辐射模来实现。在它们的稳定状态下，这些系统可能具有复杂的多体相位，如纠缠暗态，但它们的检测和表征仍然是一个挑战。在这里，我们展示了如何通过监测发射到导模中的光子的记录来发现这种集体现象。这不仅允许识别暗纠缠态，而且还为探测复杂的动力学行为提供了新的能力，例如暗纠缠和混合相共存。我们的结果与当前的光学实验直接相关，因为它们为探测、表征和分类手性光-物质系统的经典和量子动力学特征提供了一个框架。
Open quantum systems with chiral interactions can be realized by coupling atoms to guided radiation modes in photonic waveguides or optical fibers. In their steady state these systems can feature intricate many-body phases such as entangled dark states, but their detection and characterization remains a challenge. Here we show how such collective phenomena can be uncovered through monitoring the record of photons emitted into the guided modes. This permits the identification of dark entangled states but furthermore offers novel capabilities for probing complex dynamical behavior, such as the coexistence of a dark entangled and a mixed phase. Our results are of direct relevance for current optical experiments, as they provide a framework for probing, characterizing and classifying classical and quantum dynamical features of chiral light?matter systems.