发表机构
University of Geneva; National Institute for Materials Science（日内瓦大学; 国立材料研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究结合低温光谱学与扫描探针显微镜，利用AFM实现WSe₂/MoSe₂双层中量子发射器的超分辨定位与单个电荷态控制，为研究FCI中的分数化和任意子动力学提供了多点电荷传感平台。
AI 中文摘要
半导体过渡金属二硫化物异质双层中的局域层间激子是具有静态电偶极矩的量子发射器，使其成为探测邻近层中关联量子相的优异纳米级电荷传感器。这些发射器可通过电调谐并继承自旋-谷选择定则，然而由于亚波长限制，其确定性空间控制仍具挑战性。本文提出一种结合低温光谱学与扫描探针显微镜的平台，研究WSe₂/MoSe₂双层中的束缚层间激子。通过利用基于AFM的局域斯塔克位移，实现了仅间隔几十纳米的发射器的超分辨定位，并演示了对包括三离子形成在内的单个电荷态的确定性控制，为实现相干点间耦合开辟了路径。时间分辨测量揭示了针尖诱导的单个发射器周围电磁真空的改变，从而控制其辐射发射。我们的带有光学读出的多点电荷传感平台特别适合研究半导体分数量子霍尔费米子（FCI）中的分数化和任意子动力学。
英文摘要
Localized interlayer excitons in semiconducting transition-metal dichalcogenide heterobilayers are quantum emitters with a static electric dipole moment, making them excellent nanoscale charge sensors to probe correlated quantum phases in a proximal layer. These emitters are electrically tunable and inherit spin-valley selection rules, yet their deterministic spatial control remains challenging due to subwavelength confinement. Here, we present a platform that combines cryogenic optical spectroscopy with scanning probe microscopy to investigate trapped interlayer excitons in MoSe$_2$/WSe$_2$ bilayers. By exploiting tip-induced local Stark shift, we achieve super-resolution of emitters separated by a few tens of nanometers and demonstrate deterministic control of individual charge states, including trion formation. Time-resolved measurements reveal tip-induced modification of the electromagnetic vacuum around individual emitters, and thus control of their radiative emission. Our multi-point charge sensing platform with optical readout is particularly well-suited for future study of fractionalization and anyon dynamics in semiconducting fractional Chern insulators.
