报告题目:《拓扑金属和量子模拟》 报 告 人:汪子丹 教授(香港物理学会主席) 报告时间:2018年3月23日(周五)下午4点 报告地点:近代物理系210会议室 主办单位:物理学院 报告摘要: Symmetry and topology, as the two fundamentally important concepts in physics and mathematics, have not only manifested themselves in science, but also provided us with profound understanding of various natural phenomena. Recently, topological gapless systems, including Z2topological metals and semimetals [1-3], have attracted increasing research interests both theoretically and experimentally. In this talk, I will first introduce basic concepts of general and symmetry-protected topological metals. Then I will report our experimental manipulation of several topological semimetal bands and exotic topological currents using artificial systems [4,5]. eferences:[1]. Y. X. Zhao and Z. D. Wang, Phys. Rev. Lett.110, 240404 (2013). [2]. Y. X. Zhao and Z. D. Wang, Phys. Rev. Lett.116, 016401 (2016). [3]. Y. X. Zhao, A. P. Schnyder, and Z. D. Wang, Phys. Rev. Lett.116, 156402 (2016). [4]. X. Tanet al.,npjQuantum Materials2, 60 (2017). [5]. X. Tanet al., arXiv: 1802.08371. 报告人简介: |