学术活动
-
2025-0224
报告题目：Monopole Baryogenesis with a small theta angle报 告 人：Huangyu Xiao 肖煌煜 (University of Chicago)报告时间：2025年2月27日15：00报告地点：物理楼（附中南侧）W105内容摘要：Monopoles are generally expected in Grand Unified Theories (GUTs) where they can catalyze baryon decay at an unsuppressed rate by the Callan-Rubakov effect. For the first time, we show this catalysis effect can gene...
-
2025-0224
报告题目：Extraordinary electronic matter报 告 人：Ziqiang Wang, Boston College报告时间：2025年2月27日16：30报告地点：物理楼（附中南侧）W101内容摘要：In ordinary superconductors, an external magnetic field is needed to generate magnetic vortices. We discuss two examples where this conventional folklore breaks down in a fundamental way. The first example is superconductors with strong spin-or...
-
2025-0220
报告题目：常压下双层结构镍氧化物薄膜的超导电性及电子结构报 告 人：陈卓昱，南方科技大学报告时间：2025年2月27日（周四）10：00报告地点：理科楼C302内容摘要：超导现象自1911年被发现以来，寻找更高温度的超导材料是国际科学界的一个重要研究方向。此前，铜基和铁基两类材料的超导转变温度突破了40 K的麦克米兰极限，称为高温超导体。2019年，美国斯坦福大学团队发现方平面无限层镍氧化物薄膜呈现超导电性，但其超导转变温...
-
2025-0220
报告题目：Spin dynamics and dark particles in a weak-coupled quantum Ising ladder with D8(1) spectrum报 告 人：Jianda Wu Shanghai Tsung-Dao Lee Center报告时间：2025年2月26日（周三）16：00报告地点：物理楼W105内容摘要：When two quantum critical transverse-field Ising chains (TFIC) are weakly coupled, the weak inter-chain coupling can drive the system to emerge as an integrable model with eight p...
-
2025-0220
报告题目：A tale about discovery of quantum E8 particles in quantum material BaCo2V2O8报 告 人：Jianda Wu Shanghai Tsung-Dao Lee Center报告时间：2025年2月25日（星期二）13：30报告地点：物理楼W105内容摘要：Exotic thermodynamics and excitations can emerge in the vicinity of a quantum phase transition. In the talk, I will first detailedly discuss the unique quantum criticality for the Grüneisen ra...
-
2025-0220
报告题目：String magnetic states: A possible way toward a unified understanding on 1D and 2D quantum magnetic systems报 告 人：Jianda Wu Shanghai Tsung-Dao Lee Center报告时间：2025年2月24日（星期一）10：00报告地点：物理楼W105内容摘要：Based on the algebraic Bethe ansatz formalism, we study spin dynamics in the anti-ferromagnetic spin-1/2 XXZ chain with the Ising anisotropy via the form-factor ...
-
2025-0217
报告题目：Tunable Topological Correlated States in Moiré Graphene报 告 人：卢晓波，北京大学报告时间：2025年2月19日（周三）14：00报告地点：理科楼C302内容摘要：In crystalline solids, the interplay between topology and interactions can lead to various exotic topological correlated states, i.e., the recently discovered fractional Chern insulators (FCIs). Graphene based topological flat-bands provid...
-
2025-0217
报告题目：Oxide Heterostructures by Design at Atomic Scale报 告 人：Jiandi Zhang (张坚地), the Institute of Physics, Chinese Academy of Sciences报告时间：2025年2月20日16：00报告地点：物理楼（附中南侧）W101内容摘要：Due to the nature of synergetic and delicate couplings of different degrees of freedom, it is anticipated that the quantum states in transition metal oxides would be revolutionized b...
-
2025-0113
报告题目： Search for light scalar dark matter with quadratic interactions with the SM fields报 告 人：Da Liu 柳达 (University of Pittsburgh)报告时间：2025年1月16日13：30报告地点：物理楼W260内容摘要：In this talk, I will discuss about my recent work on the searches for the light scalar dark matter with quadratic interactions with SM fields. This will lead to the effective interactions between t...
-
2025-0113
报告题目：Scanning Quantum Microscopy for Emergent Phases of Matter报 告 人：Dr. Ruoming Peng 彭若酩 (University of Stuttgart, Germany)报告时间：2025年1月17日14：00报告地点：物理楼W105内容摘要：Visualization of the nanoscale magnetic response in condensed matter systems offers a powerful approach to unraveling the fundamental mechanisms of spin interactions. Two-dimensional (2D) materials, with...
