visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2024-01-03 11:00 
일시 Jan 3rd(Wed), 11:00 Am 
장소 E6-2, #1323 
연사 Sunghoon Kim (Ph.D. student, Cornell University) 
물리학과 구성원분들께, 
 
아래와 같이 세미나를 개최하고자 하오니, 관심있는 분들의 많은 참석 부탁드립니다.
 
Date: 11:00 Am, 3rd Jan (Wed)
 
Place: E6-2, #1323
 
Speaker: Sunghoon Kim (Ph.D. student, Cornell University)
 
Title: Interplay of Strong Correlations, Topology, and Disorder in 2D Quantum Matters 
 
Abstract: 

The physics of fractionalized quantum phases can be further enriched by band topology and spatial disorders. This talk will focus on our two recent works involving strongly correlated models with microscopic [1] and mesoscopic [2] spatial disorders, respectively.
In the first part of the talk, I will discuss the fate of 2D topological amorphous systems in the presence of strong on-site repulsive interactions [1]. I will consider an electronic two-orbital model with tunable topology in a 2D amorphous network. Using a parton-based mean-field approach, I will obtain the interacting phase diagram, featuring fractionalized amorphous phases with non-trivial topological properties.
In the second part, I will address non-trivial transport properties across a bandwidth-tuned metal-insulator transition in moiré TMD materials in the presence of mesoscale disorders [2]. To study the effect of disorders, I will construct a random resistor network model based on the theory of a continuous Mott transition at fixed filling of one electron per unit cell in the clean limit. The numerical results will be placed in the context of recent experiments.
[1] Sunghoon Kim, Adhip Agarwala, and Debanjan Chowdhury, Phys. Rev. Lett. 130, 026202 (2023)
[2] Sunghoon Kim, T. Senthil, and Debanjan Chowdhury, Phys. Rev. Lett. 130, 066301 (2023) 

 
번호 날짜 장소 제목
529 2016-04-26 16:00  #1323(1st Floor. E6-2)  Transport spectroscopy for electronic bands in carbon-based nanomaterials with weak-bond contacts
528 2016-06-01 16:00  #1323(E6-2 1st fl.)  Laboratory experiments relevant to mesospheric clouds, Saturn’s rings & astrophysical jets
527 2016-11-1 10:30  #1323(E6-2 1st fl.)  Time scale dependent dynamics in InAs/InP quantum dot gain media
526 2016-10-27 16:00  #1323(E6-2)  Terahertz Metal Optics
525 2016-05-16 16:00  #1323(E6-2, 1st Fl.)  Tuning microwave cavities with biased nonlinear dielectrics for axion searches
524 2016-05-19 16:00  #1323(E6-2, 1st fl.)  Nonlinear/quantum optical effect in silicon nano-photonics
523 2016-05-31 16:00  #1323(E6-2, 1st fl.)  Understanding 3D tokamak physics towards advanced control of toroidal plasma
522 2016-06-16 16:00  #1323(E6-2, 1st fl.)  Quantum information processing using quantum dots and photonic crystal cavities
521 2016-09-22 15:30  #1323(E6-2, 1st fl.)  Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
520 2016-09-22 15:30  #1323(E6-2, 1st fl.)  Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
519 2016-12-09 16:00  #1323(E6-2. 1st fl.  Shift Charge and Spin Photocurrents in Dirac Surface States of Topological Insulator
518 2017-03-02 16:00  #1323(E6-2. 1st fl.)  “Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”
517 2016-04-19 14:00  #1323(E6-2. 1st fl.)  Nonlocal collisional electron transport in partially ionized plasma generation, structure, and stability
516 2016-07-08 11:00  #1323(E6-2. 1st fl.)  Isostatic magnetism
515 2016-07-07 14:00  #1323(E6-2. 1st fl.)  Let there be topological superconductors
514 2016-07-08 14:00  #1323(E6-2. 1st fl.)  Electronic quasiparticles in the quantum dimer model
513 2016-07-28 16:00  #1323(E6-2. 1st fl.)  Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
512 2016-11-11 13:30  #1323(E6-2. 1st fl.)  Bandgap Engineering of Black Phosphorus
511 2016-11-11 16:00  #1323(E6-2. 1st fl.)  Dirac fermions in condensed matters
510 2016-11-16 16:00  #1323(E6-2. 1st fl.)  Realizing Haldane Model in Fe-based Honeycomb Ferromagnetic Insulators