visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2021-11-02 16:00 
연사  
장소 자연과학동(E6-2) #1323 
Title: Metrology of Band Topology via Resonant Inelastic X-ray Scattering
speaker: Sangjin Lee(IBS-CALDES)
Date: 4pm, 2nd Nov E6 #1323
 
abstract
Topology is a central notion in the classification of band insulators and characterization of entangled many-body quantum states. In some cases, it manifests as quantized observables such as quantum Hall conductance. However, being inherently a global property depending on the entirety of the system, its direct measurement has remained elusive to local experimental probes in many cases. Here, we demonstrate that some topological band indices can be probed by resonant inelastic x-ray scattering. Specically, for the paradigmatic Su-Schrieer-Heeger and quadrupolar insulator models, we show that non-trivial band topology leads to distinct scattering intensity at particular momentum and energy. Our result establishes an incisive bulk probe for the measurement of band topology.
 
번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
605 2019-09-18 16:00    Fall 2019: Physics Seminar Serises file
604 2019-09-02 16:00    Fall 2019: Physics Colloquium file
603 2024-01-26 15:00    In-situ 4D-STEM studies on surface reconstruction and polarization switching of perovskite oxides
602 2020-09-24 09:00    (CAPP/IBS)Searching for Dark Matter with a Superconducting Qubit , Cryogenic Microwave Circuit Development at the NSTU file
601 2021-01-28 18:00    Quantum metamaterials: concept, theory, prototypes and possible applications file
600 2023-09-18 11:00    Magic polarisation trapping of polar molecules for tunable dipolar interactions file
599 2015-12-09 11:00    Functional Imaging & Monitoring of Brain & Breast with Diffuse Light
598 2015-12-09 14:00    SWELLABLE COLLOIDAL PARTICLES ARE SWELL
597 2020-09-28 17:30    KAIST Global Forum for Spin and Beyond(Fourth Forum) file
596 2024-03-28 11:00    Geometric characterization of thermoelectric performance of two-dimensional quadratic band-crossing semimetals
595 2023-01-12 16:00    Spin wavepackets in the Kagome ferromagnet Fe3Sn2: propagation and precursors
594 2021-04-19 19:00    Evidence of Electrical Switching in Antiferromagnets and Coherent Spin Pumping file
593 2017-12-14 15:00    Exploring the Universe via GWs in the era of multi-messenger astronomy
592 2019-10-25 15:00    Physics Seminar file
591 2024-11-21 11:00  Daniel L. Jafferis  3d Gravity and Tensor Model file
590 2023-10-04 16:00    [High-Energy Theory Seminar] Moving towards quantum technologies: the case of quantum batteries
589 2024-06-05 10:00    Moir\’e fractals in supermoir\’e structures
588 2016-12-12 13:30    “Possible symmetry in the phase diagrams of electron- & hole-doped cuprate high-Tc superconductors”
587 2025-06-05 10:00  Dr . On Kim (University of Mississippi)  The Final Result from the Muon g-2 Experiment at Fermilab: The World’s Most Precise Measurement of the Muon Magnetic Anomaly file
586 2016-04-06 15:30    Superconducting Quantum Interference Devices for Precision Detection