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
259 2023-12-19 16:00  E6-2, #1323  [High Energy Theory Seminar] Non-invertible symmetries, leptons, quarks, and why multiple generations
258 2023-07-18 11:00  E6-2, #1323  Non-Hermitian Casimir Effect of Magnons
257 2023-07-19 16:00  E6-2, #1323  [High-Energy Theory Seminar]Deriving the Simplest Gauge-String Duality
256 2023-07-12 11:00  E6-2, #1323  Study of spin-1/2 antiferromagnetic kagome Heisenberg model by symmetric projected entangled simplex states
255 2023-07-11 11:00  E6-2, #1323  Ordered phases, non-Fermi liquid, and quantum criticality driven by entanglement between multipoles and conduction electrons
254 2023-06-08 16:00  E6-2, #1323  Thermal decoupling in high-Tc cuprate superconductors
253 2022-09-15 13:00  E6-2, #1323  AdS black holes: a review
252 2019-07-31 16:00  E6-2, #1323  Features of ballistic superconducting graphene file
251 2019-07-25 16:00  E6-2, #1323  Band topology of twisted bilayer graphene file
250 2019-06-24 11:00  E6-2, #1323  Topological photonic anomalies file
249 2016-09-29 16:00  E6-2, #1323  2016 Fall, Physics Seminar Serises file
248 2016-01-26 14:00  E6-2, #1323  Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
247 2016-01-11 16:00  E6-2, #1323  Mott Physics in the Strong Spin-Orbit Coupling Regime
246 2015-12-11 15:45  E6-2, #1323  Dynamical mean field theory studies on heavy fermion system
245 2015-12-11 13:30  E6-2, #1323  Quantum spin liquid in the 1/3 depleted triangular lattice Ba3(Ru1-xIrx)Ti2O9
244 2015-12-09 14:00  E6-2, #1323  SWELLABLE COLLOIDAL PARTICLES ARE SWELL
243 2015-12-03 16:00  E6-2, #1323  Hybrid solid state spin qubits in wide bandgap semiconductors
242 2015-12-02 16:00  E6-2, #1323  Samarium Hexaboride: Is it a Topological insulator?
241 2015-12-01 16:00  E6-2, #1323  Introducing extra dimensions to spectroscopic studies of advanced quantum materials
240 2015-11-28 10:00  E6-2, #1323  Electron Tunneling Spectroscopy of Single and Bilayer Graphene with Hexagonal Boron Nitride as Tunneling Barrier