新闻与活动
xin wen yu huo dong
学术活动
  • 2024-0409
      报告题目:二维半导体激子光物理研究进展报 告 人:熊启华 教授,清华大学物理系报告时间:2024-04-11 14:30-15:30报告地点:理科楼郑裕彤讲堂报告摘要:近年来,以二硫化钼等为代表的二维过渡金属硫族化合物受到了广泛的关注。这一类二维层状材料可以通过机械剥离或者化学气相沉积方式获得,其电子能带结构依赖于层数;其单层材料具有直接带隙特征,并展现出显著的室温下激子特征。由于反演对称性破缺和较强自旋-轨道耦合作用...
  • 2024-0408
      报告题目:Progress of Quantum Mechanics in Nuclear Physics, Gamow's Puzzle, Relativization and Open Problems报 告 人:Dr. (hab) Sergei Maydanyuk (Wigner Research Centre for Physics, Budapest & Institute for Nuclear Research, Kyiv)报告时间:2024-04-9 16:00报告地点:理科楼C109报告摘要:In this talk, I will demonstrate the advancement of quantum mechanics in study of nuclear physics problems and d...
  • 2024-0408
      报告题目:理学院科学之美讲坛: 宇宙线、伽马天文和LHAASO报 告 人:曹臻,中国科学院高能物理研究所报告时间:2024-04-11 16:00报告地点:理学院郑裕彤大讲堂报告摘要:经过100年的探索,我们已经知道宇宙线是来自银河系甚至以外的宇宙空间的各种原子核和少量光子、中微子,它们的能谱,甚至于它们的种类分布,但它们起源于何处、源处的加速器是怎样把粒子加速到如此之高的能量、它们是怎样穿越茫茫宇宙传播到我们地球?这些都...
  • 2024-0328
      报告题目:纳米结构工程与纳米压印报 告 人:Stephen Y. Chou (美国工程院院士、普林斯顿大学教授)报告时间:2024-04-01 15:00报告地点:纳米科技楼4楼报告厅报告摘要:纳米结构工程为多学科和行业的创新和突破提供了独特的途径。随着结构尺寸缩小到基本物理尺寸以下,传统理论可能不再适用,从而会产生全新的特性。高通量、低成本、大面积的纳米结构制造技术对纳米结构工程的应用和产业化具有重要意义。纳米压印是现有的纳米结...
  • 2024-0326
      报告题目:What is powering the Earth's Engine?报 告 人:Bill McDonough (Earth Sciences & Res Center Neutrino Sci, Tohoku University, Geology, University of Maryland)报告时间:2024-03-28 14:30报告地点:理科楼C302报告摘要:The fuel driving plate tectonics, volcanoes, mantle convection, and the Earth’s magnetic field comes from two sources: primordial energy from assembling the planet and nuclear...
  • 2024-0325
      报告题目:Quantum technologies for trapped molecular ions报 告 人:Prof.Stefan Willitsch (Department of Chemistry, University of Basel, Switzerland )报告时间:2024-03-27 10:00报告地点:理科楼C302报告摘要:Molecules are quantum systems of prime significance in a variety of contexts ranging from physics over chemistry to biology. In spite of their importance, the development of quantum technologi...
  • 2024-0325
      报告题目:Harnessing chiral currents in ultracold atoms with Floquet engineering and contact interaction报 告 人:潘建松, 四川大学物理学院报告时间:2024-03-26 14:00报告地点:理科楼C109报告摘要:The manipulation of particle transport in synthetic quantum matter is an active research frontier. In this presentation, I will introduce our recent efforts in harnessing chiral currents in ultracold ato...
  • 2024-0322
      报告题目:colloquium: Multi-fermion-clustering Physics报 告 人:Congjun Wu, Department of Physics, School of Science, Westlake University报告时间:2024-03-28 16:00报告地点:理科楼郑裕彤讲堂报告摘要:Typical mean-field theories for many-body states rely on two-fermion orderings. Order parameters lie in either the particle-particle channel such as pairing orders for superconductivity, or, in the ...
  • 2024-0321
      报告题目:How to perfect a matterwave "gate", and why报 告 人:Saijun Wu Fudan University报告时间:2024-03-25 10:00报告地点:理科楼C109报告摘要:In real-world applications, quantum systems are controlled by inherently imperfect classical resources. Nevertheless, for discrete "qubits" or "spins," nearly perfect controls can be achieved by harnessing the geometric phases of the few-level evolutio...
  • 2024-0320
      报告题目:新型层间量子拖拽效应报 告 人:曾长淦 教授,中国科学技术大学物理系报告时间:2024-03-21 14:30报告地点:理科楼C109报告摘要:两个空间相近但彼此绝缘的导电层构成了电双层结构。在其中一层施加驱动电流会在另一层诱导产生开路电压,即产生层间拖拽效应。相较于传统单一导体层内输运,层间拖拽这一独特的耦合输运行为可以同时反映层内电子态特性以及层间长程相互作用,为发现新奇量子物态提供了更多可能性,拓展了...