本学期学术活动
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2023-1023
告题目:物理系colloquium: Recent progress in anomalous Hall effect in ferromagnetsand antiferromagnets 报告人:姚裕贵北京理工大学报告时间:2023-10-26 16:00报告地点:理科楼郑裕彤讲堂主办单位:物理系 简介:The anomalous Hall effect (AHE) is a fundamental phenomenon related to magnetism in solid-state physics, in which a transverse voltage drop is induced by a longitudinal electric field [1, 2]. Alt...
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2023-1023
Title: Everything Everywhere All at Once: Holographic Entropy Inequalities, the Topology of Error Correction, Black Holes, Cubohemioctahedron, and (maybe) the Toric Code Speaker: Bartek Czechn (Tsinghua University)Time: 2:00 pm, Oct 26 (Thursday) 2023Location: 理科楼C302Abstract: An important class of quantum states are those whose entanglement entropies can be computed by minimal cuts through...
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2023-1020
报告题目: Integer and fractional quantum anomalous Hall effects in 2D semiconductor moiré superlattices报告人: 李听昕，上海交通大学时间地点: 10月25日上午10:00，理科楼C302摘要：The emergence of topological moiré flat bands provides exciting opportunities to realize the lattice analogs of both the integer and fractional quantum Hall effects without the need for an external magnetic field. These e...
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2023-1019
题目：自旋轨道矩磁存储器研究与大规模集成报告人：蔡凯明，华中科技大学时间：2023-10-23 16:00地点：理科楼C302摘要：在自旋电子学领域，基于自旋的磁性随机存储器（MRAM）具备高速、低功耗和非易失性等优势，有望成为突破集成电路“后摩尔时代”瓶颈的解决方案之一。目前，第二代基于自旋转移矩（spin-transfer torque，STT）的磁性存储器STT-MRAM已经实现全面商业化量产，开始在嵌入式系统中投入使用，以提升数据存储和计算...
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2023-1018
报告题目：Time-resolved photoemission: From bandstructure to orbital movies报告人：Ulrich Höfer，Philipps University of Marburg报告时间：2023年10月19日09:00报告地点：理科楼C302报告摘要：Time-resolved photoemission combines femtosecond pump-probe techniques with angle-resolved photoelectron spectroscopy (ARPES). Recent developments enable the method to track electron motion in two-dimensional mo...
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2023-1018
Title: High-quality axions in a class of chiral U(1) gauge theoriesSpeaker: Yu-Cheng Qiu (SJTU)Time: Oct 19 (Thursday) 2pmLocation: 理科楼C302Abstract:There are many candidates for the quintessence and/or the QCD axions in a class of chiral U(1) gauge theories. Their qualities are high enough to serve as the dark energy and/or to solve the strong CP problem. Interestingly, the high quality of a...
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2023-1016
Title: Finite-temperature states on a trapped-ion quantum computerSpeaker: Norbert M. LinkeAffiliations: Duke Univ. / Univ. of MarylandTime: Oct.20th 10:00amVenue: New Science Building(理科楼）C109Abstract: Our experiment consists of a chain of 171Yb+ ions with individual Raman beam addressing and individual readout. This fully connected system can be configured to run any sequence of single- a...
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2023-1016
报告题目:理学院科学之美讲坛: Chiral Spintronics报告人:Stuart S.P. ParkinMax Planck Institute of Microstructure Physics, Halle (Saale), Germany报告时间:2023-10-18 16:00报告地点:理科楼郑裕彤讲堂主办单位:理学院（主办），物理系（承办）简介:Spintronics is a field of research that harnesses the electron’s spin to create novel materials with exotic properties and devices especially those for storing ...
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2023-1013
报告题目：镍基超导中氢元素的关键性作用报告人：乔梁（电子科技大学物理学院）时间：10月13日 9：00-10：00地点：物理系C109Abstract: 2019年美国斯坦福大学Hwang教授课题组发现了无限层镍氧化物外延薄膜的超导电性（镍基超导），为超导物理和材料的研究开辟了新方向[1]。镍基超导材料具有二维无限层晶体结构和与铜基超导类似的3d9-x电子构型，是深入研究类铜基高温超导的模型体系，对于揭示高温超导的物理机制具有重要意义。...
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2023-1010
报告题目：Topological robustness revealed by real-time bulk and edge studies报告人：Jian Huang (Wayne State University)时间地点：2023年10月11日周三下午3:00，理科楼C302报告摘要：Topology provides an important concept for achieving dissipationless states that are key to sustaining unchanged quantum electron properties to remarkable precisions [1,2]. So far, most understanding of the protection me...
