论文标题
rydberg宏观二聚体：微米尺度上的双原子分子
Rydberg Macrodimers: Diatomic molecules on the micrometer scale
论文作者
论文摘要
在单个原子水平上控制分子结合是量子化学的圣杯之一。 Rydberg宏观二聚体 - 激发的Rydberg Atoms之间的结合状态 - 在这个方向上提供了一种新颖的视角。由Rydberg状态的强，远距离相互作用形成的结合电位，Rydberg Macrodimers在微米制度中具有键长，超过了通过数量级的常规分子的键长。使用量子气体显微镜中的单原子控制，可以通过前所未有的控制研究这些外来状态的独特性能，包括对磁场的响应或光相结合中光的偏振。在宏观二聚体的光谱研究中获得的高精度使它们成为基准rydberg相互作用的理想测试，与使用这些相互作用的量子计算和信息方案直接相关。这篇评论提供了历史性的概述，并总结了Rydberg宏观二聚体领域的最新发现。此外，它介绍了有关大型二聚体之间相互作用的新数据，从而导致了类似于分子水平的Rydberg阻断的现象，为研究超级范围Rydberg分子的多体系统开辟了道路。
Controlling molecular binding at the level of single atoms is one of the holy grails of quantum chemistry. Rydberg macrodimers -- bound states between highly excited Rydberg atoms -- provide a novel perspective in this direction. Resulting from binding potentials formed by the strong, long-range interactions of Rydberg states, Rydberg macrodimers feature bond lengths in the micrometer regime, exceeding those of conventional molecules by orders of magnitude. Using single-atom control in quantum gas microscopes, the unique properties of these exotic states can be studied with unprecedented control, including the response to magnetic fields or the polarization of light in their photoassociation. The high accuracy achieved in spectroscopic studies of macrodimers makes them an ideal testbed to benchmark Rydberg interactions, with direct relevance to quantum computing and information protocols where these are employed. This review provides a historic overview and summarizes the recent findings in the field of Rydberg macrodimers. Furthermore, it presents new data on interactions between macrodimers, leading to a phenomenon analogous to Rydberg blockade at the level of molecules, opening the path towards studying many-body systems of ultralong-range Rydberg molecules.
