学术活动
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2023-0920
Title: Fermion-to-qubit mappings in two spatial dimensionsSpeaker: Yu-An Chen (陈昱安), Peking UniversityDate/Place：9月25日周一下午2:30，理科楼C302Abstract: The talk discusses the relationship between fermionic observables and Pauli matrices on two-dimensional lattices. First, it will introduce the exact bosonization method. It is argued that all fermion-to-qubit mappings can be obtained from ...
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2023-0919
Title：Evidence of finite momentum pairing in a centrosymmetric bilayerSpeaker：赵冬，德国马克斯普朗克固态研究所Date/Place：9月21日上午10:30，理科楼C302Abstract：A phase characterized by a spatially-modulated order parameter is counter-intuitive because of the entropy penalty that the modulations incur. Its possible existence in superconductors was first proposed under conditions that the forma...
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2023-0918
报告题目：Piezomagnetism and noncollinear spin current without spin-orbital coupling报告人：Prof. Junwei Liu，The Hong Kong University of Science and Technology时间：2023年09月20日14:00地点：理科楼三楼报告厅（C302）报告摘要：In this talk, I will take our recently proposed new type of spin-valley locking (SVL), named C-paired SVL, in antiferromagnetic systems. It directly connects the spin/valle...
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2023-0918
报告题目：IV-VI族二维铁电半导体面内超晶格与铁电隧道结报告人：常凯，北京量子信息科学研究院时间地点：9月19日上午10:00，理科楼C302摘要：利用二维材料不仅可以方便地构造竖直方向的异质结，也可以构造高质量的面内异质结。具有一维界面的面内异质结和超晶格在制备各种纳米线、量子点、隧道结、约瑟夫森结等低维结构方面有得天独厚的优势，有望在下一代逻辑和存储器件、量子计算器件的开发中起到重要作用。然而，受限于生长...
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2023-0918
报告题目：负离子的故事报 告 人: 宁传刚教授，清华大学物理系报告时间：9月21日（周四） 14：30-15：30报告地点：理科楼郑裕彤讲堂摘要：负离子具有独特的性质，在很多重要的物理化学过程中都扮演重要角色。过渡族元素由于能级结构复杂，传统谱学方法很难研究其原子负离子，大多数过渡族元素的电子亲和势和负离子的能级结构都是未知的。报告人新建了一套冷离子-慢电子速度成像联用的高分辨光电子谱仪，利用这套谱仪精密测量了...
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2023-0915
报告题目:物理系colloquium：Magnonics and Ferronics报告人:Gerrit Ernst Wilhem BauerChair Professor at the Kavli Institute for Theoretical Science，Professor and PI at the Advanced Institute of Material Science of Tohoku University报告时间:2023-09-21 16:00报告地点:理科楼郑裕彤讲堂主办单位:物理系简介:The duality between electric and magnetic dipoles in electromagnetism only partly applies to conde...
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2023-0911
Time: 10:00 am, Sep 14th (Thursday), 2023Location: 理科楼C302Title: Loosely bound states in relativistic nuclear collisionsSpeaker: Peter Braun-Munzinger (EMMI)Abstract: Light nuclei and hyper-nuclei are copiously produced in nuclear collisions at hadron colliders. We will present the experimental situation and discuss how such fragile structures are produced close to the QCD phase boundary, ev...
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2023-0911
Time: 10:00 am, Sep 14th (Thursday), 2023Location: 理科楼C302Title: Experimental test of quark deconfinement — hadrons with charm quarksSpeaker: Johanna Stachel (Heidelberg University)Abstract: The production of hadrons in relativistic nuclear collisions with up to three charm quarks is strongly enhanced if the quarks in the hot fireball are deconfined. We will describe how this comes about in...
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2023-0905
Title: Bootstrapping AdS Gluons and Gravitons at Loop Level Speaker: Ellis Ye Yuan (袁野) (Zhejiang University)Time: 10:30 am, Sep 12 (Tuesday) 2023Location: 理科楼C302Abstract: I will describe our recent works on the analytic bootstrap study on the perturbative four-point scattering of super gravitons and super gluons on the AdS spacetime background, which yields new results at one and two loo...
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2023-0831
Title: Large Spin-Orbit Coupling Systems for Emerging Physics and Spintronics ApplicationsSpeaker: 寇煦丰, 上海科技大学Time: 10:00 Am, 2023-09-01 (Friday)Location: 理科楼C302Abstract: Spintronics, which uses spin as the building block for information process, has become an emerging area in the Post-Moore ear. In order to address current challenges of spintronics, opportunities may exist for a f...
