本学期学术活动
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2023-1128
Title: Complexity and order in approximate quantum error-correcting codes报告人: 刘子文（丘成桐数学科学中心）时间地点：11月28日（周二）下午 2:00pm，静斋105Abstract: Quantum codes achieving approximate quantum error correction (AQEC) are useful, often fundamentally important, from both practical and physical perspectives but lack a systematic understanding. In this work, we establish rigorous co...
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2023-1127
报告题目:物理系colloquium: 镍氧化物高温超导研究 报告人:张广铭清华大学物理系报告时间:2023-11-30 16:00报告地点:理科楼郑裕彤讲堂主办单位:物理系 简介:镍氧化物超导是近几年新发现的非常规超导体系，分别为Lnn+1NinO3n+1和Lnn+1NinO2n+2钙钛矿结构，其中Ln代表稀土元素La、Pr、Nd等。2019年，美国科学家首先在Nd1-xSrxNiO2薄膜中发现超导电性，但超导转变温度仅有15 K，压力下也没有超过40 K。2023年，中国科学家在双...
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2023-1121
Title: Physics opportunities and challenges at future multi-TeV lepton collidersSpeaker: Yang Ma 马杨 (INFN Bologna)Time: 2:00 pm, Nov 24(Friday) 2023Location: 理科楼C109Abstract: The largest scientific marvel ever constructed by humankind, the Large Hadron Collider (LHC) at CERN, has etched its name in history with groundbreaking discoveries, most notably the revelation of the Higgs boson. Fas...
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2023-1121
Title: Analytic Formulae for Inflationary Correlators with Dynamical MassSpeaker: Fumiya Sano (Tokyo Institute of Technology)Time: 2:00 pm, Nov 23 (Thursday) 2023Location: 理科楼C302Abstract: Massive fields can imprint unique oscillatory features on primordial correlation functions or inflationary correlators, which is dubbed the cosmological collider signal. In this work, we analytically inves...
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2023-1120
报告题目:物理系colloquium: 阿秒脉冲的产生、应用及发展展望 报告人:魏志义中国科学院物理研究所研究员报告时间:2023-11-23 16:00报告地点:理科楼郑裕彤讲堂主办单位:物理系 简介:超快激光一直是激光科学与技术的前沿内容之一，也是人们开展超快科学、强场物理、精密计量的基础及不可或缺的手段，迄今已产生多项诺贝尔奖。自上世纪 80 年代以来，随着啁啾脉冲放大技术，高次谐波产生技术、克尔透镜锁模技术及载波包络相位...
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2023-1120
报告题目：Femtosecond coherent manipulation of magnetism in solids报告人：Davide Bossini时间：2023-11-22 10：00地点：物理系理科楼C302摘要：The wildly growing field of light-matter interaction in solids is currently addressing several fundamental questions. A major topic of investigation concerns the possibility to optically manipulate the macroscopic electronic, magnetic and lattice properties ...
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2023-1120
报告题目：自组装氧化物薄膜：从设计到应用报告人：杨浩, 南京航空航天大学时间：2023年11月24日(周五） 10：30地点：物理系B315Abstract: Self-assembly has been approved to be a useful method to fabricate oxide thin films with a rich variety of periodic nanoscale patterns. Recent efforts have been focused on how to make the self-assembly controllable. In a film-on-substrate geometry, epitaxial composit...
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2023-1120
报告题目：Direct Visualization of Pair Density Wave States and Strong Electron-Lattice Interactions in the Cuprate Superconductor报告人：杜增义, 合肥国家实验室时间：2023年11月23日 14：00地点：物理系C109Abstract: In the first part of my talk, I will list evidences supporting the existence of a Pair Density Wave (PDW) state in the pesudogap phase of cuprate. We observed a modulating gap in Bi2Sr2...
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2023-1117
报告题目：Ultrafast magnetism – terra incognita beyond the classical approximations报 告 人：A.V. Kimel，Radboud University报告时间：2023年11月20日15:30报告地点：理科楼C302报告摘要：While magnetism is essentially the strongest quantum mechanical phenomenon, modern description of magnetization dynamics and magnetization reversal relies on thermodynamics and the corresponding approximations. I w...
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2023-1116
报告题目：Unraveling the Mystery of Quantum Measurement with A New Space-Time Approach to Relativistic Quantum Mechanics报告人： 文伟, 湖南工业大学报告时间：2023年11月17日（周五）13:30报告地点：理科楼C109报告摘要：Quantum measurement is a fundamental concept in the field of quantum mechanics. The action of quantum measurement, leading the superposition state of the measured quantum system into ...
