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05-08
Half-quantized Transport in Axion Insulators
We propose that half-quantized helical hinge currents manifest as the fingerprint of the axion insulator. These helical hinge currents microscopically originate from the lateral Goos-Hänchen (GH) shif...
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05-08
Explore dark matter by gravitational wave and radio signals
The LIGO-Virgo Collaboration has so far detected more than 100 black holes, whose mass distribution appears to have a peak at ∼ 30M☉ and two tails on the ends. By assuming that they all have a primo...
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05-08
Quantum droplet in ultracold gases
Quantum droplet describes a self-bound object that is stabilized by quantum effect. It has a long research history ever since the Kerson Huang's theoretical model in late 1950s and the intensive study...
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05-08
Excited State Ultrafast Dynamics of Superconductors and Topological Materials
I will first address our ultrafast spectroscopy investigations of iron-based high temperature superconductors, showing that there is a ubiquitous positive correlation between the electron-phonon coupl...
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05-08
飞秒高次谐波极紫外激光及其多模式纳米成像技术
极紫外和软X射线光波拥有极短波长和丰富的元素吸收边，是研究纳米结构，半导体器件，量子材料必不可少的工具。随着极紫外光刻技术实现量产，极紫外光应用也正式“走入”千家万户。然而，迄今为止，高效率低成本产生极...
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05-08
笼目金属材料探索和关联拓扑效应研究
笼目（Kagome）晶格因为具有非平庸的拓扑电子结构，比如狄拉克节点、平带和鞍点等，以及阻挫磁性而引起了人们的广泛关注。在这次报告中，我将简要介绍我们对于Fe3Sn2、Co3Sn2S2、YMn6Sn6、AV3Sb5 (A = Rb and Cs)等几...