新闻与活动
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本学期学术活动
  • 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...
  • 2024-0318
      报告题目:Pressure induced superconductor-insulator-transition报 告 人:Aviad Frydman,Bar Ilan University, Israel报告时间:2024-03-22 10:00报告地点:理科楼C302报告摘要:The Superconductor Insulator Transition (SIT) in 2D layers and thin films has been a topic of great interest for the past few decades. While much progress has been made in the field, both theoretically and experimentally, there...
  • 2024-0318
      报告题目:从量子力学到材料发现:第一性原理遇见人工智能报 告 人:徐勇 教授,清华大学物理系报告时间:2024-03-21 14:30-15:30报告地点:理科楼郑裕彤讲堂报告摘要:从量子力学到材料发现、从经验试错到人工智能是当今计算物理与计算材料科学的主要发展趋势,由此诞生了材料基因工程,即构建材料大数据,加速材料发现。高通量第一性原理计算是建立材料数据库的主要手段,但受限于高昂的计算代价,现今最大的材料数据库仅包...
  • 2024-0315
      报告题目:物理系colloquium: 超快激光精密制造报 告 人:孙洪波,清华大学精密测试技术及仪器全国重点实验室主任报告时间:2024-03-21 16:00报告地点:理科楼郑裕彤讲堂报告摘要:现有纳米制造技术需要纳米特征尺寸的工具(切削刃厚度、锥尖尺寸、粒子束直径等)或模板作用于被加工对象方可实现。与实物工具相比,光子直接作为加工手段,具有可变形、无损耗等独特优势,但由光学衍射极限尺寸(可见光中心波长550纳米)定义的加...
  • 2024-0313
      报告题目:Structural disorder induced topological phase transition in Rydberg atoms报 告 人:徐勇, Institute for Interdisciplinary Information Sciences, Tsinghua University报告时间:2024-03-14 14:00报告地点:理科楼C302报告摘要:In this talk, I will first briefly show our finding that structural disorder can drive a phase transition from a topologically trivial phase to a second-order topologica...
  • 2024-0311
      报告题目:物理系colloquium: Advanced Film Techniques for High-Tc Superconductors报 告 人:金魁,中国科学院物理研究所报告时间:2024-03-14 16:00报告地点:理科楼郑裕彤讲堂报告摘要:In this talk, I would like to briefly share with you our recent work on both physics and applications of High-Tc superconductors via advanced film techniques. For a cuprate system La2-xCexCuO4, we developed advanced hig...
  • 2024-0305
      报告题目:Towards Systematic and Efficient Evaluation of Perturbation Quantum Field Theory in de Sitter Spacetime报 告 人:陈家麒,Beijing Computational Science Research Center报告时间:2024-03-07 14:00报告地点:理科楼C109报告摘要:De Sitter spacetime is one of the simplest curved spacetimes. Therefore, computing quantum field theory on de Sitter spacetime is the first step towards computing qu...
  • 2024-0304
      报告题目:物理系colloquium:强相互作用力的前世今生—从三体文明的水滴谈起报 告 人:耿立升,北京航空航天大学报告时间:2024-03-07 16:00报告地点:理科楼郑裕彤讲堂报告摘要:刘慈欣的《三体》中的水滴是一个匪夷所思的探测器,其特殊本领的来源是因为它是由“强相互作用力材料”制成的。那么什么是强相互作用力呢?强相互作用力是自然界中四种基本相互作用的一种,其由于渐进自由和色禁闭的双重加持,在低能区表现为强子...
  • 2024-0229
      报告题目:Multicomponent superconductivity and four-fermion phase in the Ba1-xKxFe2As2 system报 告 人:Vadim Grinenko, Tsung-Dao Lee Institute, Shanghai Jiao Tong University报告时间:2024-03-08 10:00报告地点:理科楼C302报告摘要:In general, magnetism and superconductivity are antagonistic to each other. However, there are several families of superconductors in which superconductivity coexists w...