论文标题
在电路QED结构上与核自旋相连的高度协作耦合
High cooperativity coupling to nuclear spins on a circuit QED architecture
论文作者
论文摘要
核自旋是候选量子或Qudits的候选者，因为它们是从磁噪声中分离出来的，并且可能是较长的连贯时间。但是，它们与外部刺激的耦合较弱使它们难以集成到电路Quest体系结构中，这是固态量子处理器的领先技术。在这里，我们研究了[yb（trensal）]分子中$^{173} $ yb（iii）核自旋状态的耦合。实验已经在放置在磁性稀释的单晶上进行的，这些晶体放置在集体元素$ LC $超导谐振器的电感器上，具有特征性的频率，涵盖了核和电子自旋跃迁的范围。我们与所有电子和大多数核[$^{173} $ yb（trensal）]旋转过渡达到了高度合作耦合。该结果是使用混合体系结构实施用分子旋转实施QUDIT方案的巨大飞跃。
Nuclear spins are candidates to encode qubits or qudits due to their isolation from magnetic noise and potentially long coherence times. However, their weak coupling to external stimuli makes them hard to integrate into circuit-QED architectures, the leading technology for solid-state quantum processors. Here, we study the coupling of $^{173}$Yb(III) nuclear spin states in an [Yb(trensal)] molecule to superconducting cavities. Experiments have been performed on magnetically diluted single crystals placed on the inductors of lumped-element $LC$ superconducting resonators with characteristic frequencies spanning the range of nuclear and electronic spin transitions. We achieve a high cooperative coupling to all electronic and most nuclear [$^{173}$Yb(trensal)] spin transitions. This result is a big leap towards the implementation of qudit protocols with molecular spins using a hybrid architecture.
