Topological states in atomic structures probed by scanning tunneling microscopy

近十年来，拓扑量子材料和拓扑量子态的发现揭开了凝聚态物理的新篇章。最引人注目的拓扑现象之一是拓扑超导体中的量子激发。这些迷人的激发，称为马约拉纳态，不像费米子或玻色子，在交换时表现出非阿贝尔统计。因此，它们被认为是拓扑量子计算的关键。 本计画的研究目标是建立一个基于磁性原子结构的新型平台来控制Majorana态。该研究员将在S. Nadj-Perge是加州理工学院（Caltech）的科学家，他是第一个测量马约拉纳州原子结构的人。在我的实验中，我将使用一种高度专业化的仪器，它将扫描探针显微镜与控制马约拉纳状态所需的电气连接集成在一起。加州理工学院一个由世界公认的理论家组成的强大团队，包括Alex Kitaev教授，他的想法开创了这个研究领域，将支持我的努力。这支专家团队和高度专业化的设备使加州理工学院成为进行此类研究的独特场所。

The discovery of topological quantum materials and topological quantum states established a new chapter of condensed matter physics in the last ten years. One of the most remarkable topological phenomena are quantum excitations hosted in topological superconductors. These fascinating excitations, called Majorana states, unlike fermions or bosons exhibit non-Abelian statistics upon exchange. For this reason, they are considered to be crucial for topological quantum computing. This research goal of this proposal is to establish a novel platform based on magnetic atomic structures for controlling Majorana states. The fellow will be hosted in the group of Prof. S. Nadj-Perge at the California Institute of Technology (Caltech), who was the first to measure Majorana states in atomic structures. For my experiments, I will use a highly specialized instrument which integrates scanning probe microscope with electrical connections needed for control of Majorana states. A strong team of world recognized theorists at Caltech including Prof. Alex Kitaev whose ideas initiated this research field, will support my efforts. This team of experts and highly specialized equipment make Caltech a unique place to pursue this type of research.