visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2021-11-02 16:00 
일시 Nov. 2(Tue) 04:00pm 
장소 자연과학동(E6-2) #1323 
연사 Sangjin Lee(IBS-CALDES) 
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 장소 제목
352 2018-12-07 14:30  E6-2. 1st fl. #1323  Spin generation from heat and light in metals file
351 2018-12-07 16:00  E6-2. 1st fl. #1323  Novel probes of interacting electrons in 2D systems file
350 2018-12-11 16:00  E6-2. 1st fl. #1323  Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
349 2018-12-16 16:00  E6-2. 1st fl. #1323  Lectures on 2d Conformal Field Theory file
348 2018-12-26 16:00  E6-1. 3rd fl. #3434  Informal Workshop on Topology and Correlation file
347 2018-12-26 16:00  E6-2. 1st fl. #1323  Brane-like defect in 3D toric code file
346 2018-12-27 16:00  E6-2. 1st fl. #1323  Quantum Innovation (QuIN) Laboratory file
345 2019-01-07 15:00  E6-2. 2st fl. #2501  Many-Body Invariants for Multipoles in Higher-Order Topological Insulators file
344 2019-01-09 16:00  E6-2. 2nd fl. #2501  Molecular Mott state in the deficient spinel GaV4S8 file
343 2019-01-23 16:00  Rm. C303, Creation Hall (3F), Munji Campus  Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
342 2019-02-21 16:00  #5313, E6-2  B-meson charged current anomalies - Theoretical status file
341 2019-02-25 16:00  Rm. 1501 (E6)  Spring 2019: Physics Colloquium file
340 2019-03-21 16:00  RM. 1323, E6-2  Spring 2019: Physics Seminar Serises file
339 2019-03-26 15:00  E6-2. 2st fl. #2501  Consideration of thermal Hall effect in frustrated and un-frustrated quantum magnets file
338 2019-03-29 14:30  E6-2. 1st fl. #1323  Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file
337 2019-03-29 16:00  E6-2. 1st fl. #1323  Coherent Quantum Control and Magnetism on atoms – Trapped ion and ESR STM file
336 2019-04-04 16:00  #1323, E6-2  Chiral spin-photon interaction at nanoscale file
335 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
334 2019-04-19 11:00  #1323, E6-2  First-principles studies of semiconductors for solar cell applications file
333 2019-04-19 14:30  E6-2. 1st fl. #1323  A family of finite-temperature electronic phase transitions in graphene multilayers file