visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2024-05-28 10:00 
연사  
장소 E6-2, #2501 
아래와 같이 세미나를 개최하고자 하오니, 관심있는 분들의 많은 참석 부탁드립니다.
 
Date: 10:00 am, 28th May (Tue)
 
Place: E6-2, #2501
 
Speaker: Prof. Kyusung Hwang (School of Physics, Korea Institute for Advanced Study)
 
Title: Mixed-State Quantum Spin Liquids and Dynamical Anyon Condensations in Kitaev Lindbladians
 
Abstract: 

Quantum spin liquids and anyons, used to be subjects of condensed matter physics, now are realized in various platforms of qubits, offering unprecedented opportunities to investigate fundamental physics of many-body quantum entangled states. Qubits are inevitably exposed to environment effects such as decoherence and dissipation, which are believed to be detrimental to many-body entanglement. Here, we argue that unlike the common belief decoherence and dissipation can give rise to novel topological phenomena in quantum spin liquids. We study open quantum systems of the Kitaev spin liquid and the toric code via the Lindblad master equation approach. By using exact solutions and numerical approaches, we show the dynamical occurrence of anyon condensation by decoherence and dissipation, which results in a topological transition from the initial state spin liquid to the steady state spin liquid. The mechanism of the anyon condensation transition by the Lindblad dynamics is elucidated. We also provide an insight into the relationship between the Kitaev spin liquid and the toric code in the picture of anyon condensation. Our work suggests open quantum systems to be a new venue for topological phenomena of quantum spin liquids and anyons.

 [1] Hwang, arXiv:2305.09197.
 
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)
245 2020-10-15 16:00    Graphene-based Josephson junction microwave bolometer file
244 2015-07-23 13:30    Enhanced ZnO based UV photonics and related applications file
243 2022-05-27 11:00    Current Status and Future Plans of ADMX file
242 2019-05-31 11:00    Cavity QED with Spin Qubits file
241 2023-06-08 16:00    Thermal decoupling in high-Tc cuprate superconductors
240 2017-08-31 14:00    “Berry phase and nonlinear response: photocurrent in noncentrosymmetric insulators and Weyl semimetals” file
239 2018-12-11 16:00    Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
238 2018-07-13 14:00    Loop Induced Single Top Partner Production and Decay at the LHC
237 2024-05-16 16:00    [High Energy Theory Seminar] Conformal Collider Physics
236 2025-02-25 14:00  Prof. Igor Di Marco  Dynamical mean-field theory for strongly correlated materials file
235 2020-10-23 14:00    Plasmon spectroscopy of low-dimensional superconductors in fluctuating regime file
234 2018-05-29 16:00    Investigation on metal nanostructure/semiconductor junction and its applications file
233 2019-11-07 16:00    Integrated quantum photonics with solid-state quantum emitters file
232 2024-05-01 16:00    [High Energy Theory Seminar] Across the Mass Spectrum: Utilizing Small-Scale Structures to Probe Dark Matters
231 2017-12-15 09:20    Workshop on Magnetism in Unconventional Superconductors 개최 file
230 2019-11-14 16:00    Semi-classical model of polariton propagation file
229 2022-07-21 16:00    Quintessential axions file
228 2019-04-23 16:00    From Mott physics to high-temperature superconductivity file
227 2016-07-28 16:00    Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
226 2017-01-09 16:00    Topological Defects and Phase Transitions" file