visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-07-12 11:00 
일시 July 12th(Wed), 11:00AM 
장소 E6-2, #1323 
연사 Prof. Ying-Jer Kao(National Taiwan University) 

물리학과에서는 아래와 같이 세미나를 개최하고자 하오니 관심있는 분들의 많은 참석 부탁드립니다.

 

Date: 11:00 Am, 12th July (Wed)
 
Place: E6, #1323
 
Speaker: Prof. Ying-Jer Kao(National Taiwan University)
 
Title: Study of spin-1/2 antiferromagnetic  kagome Heisenberg model  by symmetric projected entangled simplex states
 
Abstract: 

 

We utilize symmetric projected entangled simplex states (PESS) to classify possible $\mathbb{Z}_2$ spin liquid phases based on  the short-range physics associated with the fractionalization of both the on-site and space-group symmetries. We numerically obtain the optimal $\mathbb{Z}_2$ ground state of the nearest-neighbor spin-1/2 antiferromagnetic Heisenberg model on the kagome lattice.   Using variational simple update and the corner transfer matrix renormalization group, we show the four RVB states converge to different energy levels and the $0$-flux(I) state has the lowest energy. The excitation spectrum, however, indicates  softening of the fermionic excitation, which suggests a possible transition to a closeby $U(1)$ Dirac spin liquid. 

번호 날짜 장소 제목
428 2015-10-23 10:30  E6, #1501  How to write a good scientific paper[Open lecture series]
427 2018-05-17 13:30  E6-2. 1st fl. #1323  Quantum Spin Liquid in Kitaev Materials file
» 2023-07-12 11:00  E6-2, #1323  Study of spin-1/2 antiferromagnetic kagome Heisenberg model by symmetric projected entangled simplex states
425 2017-09-13 16:00  #1323 (E6-2. 1st fl.)  An Introduction to Quantum Spin Liquids file
424 2017-09-12 16:00  #1323 (E6-2. 1st fl.)  Exact Solution for the Interacting Kitaev Chain at Symmetric Point file
423 2023-12-08 10:30  E6-2, Rm#2502  Novel transport phenomena in insulators
422 2017-11-08 13:00  #5318 (E6-2. 5th fl.)  “Emergent exotic quasiparticles in quantum spin liquids” file
421 2020-09-22 09:30  Zoom webinar  Physics and applications of soliton microcombs(Quantum- & Nano-Photonics) file
420 2017-04-05 12:00  Room 101, Creative Learning Bldg.(E11)  2017년 4월 첫수 융합포럼 개최 안내(물리학과 & 원자력 및 양자공학과 공동 개최)/The First Wednesday Multidisciplinary Forum in April 2017 organized by Dept. of Physics & Dept. of Nuclear & Quantum Engineering file
419 2020-10-09 09:00  https://kaist.zoom.us/j/85161896513?pwd=U3pwWFFZaWVRamxDZUR5REhNeVk0UT09  Quantum Many-Body Simulation file
418 2023-11-08 10:00  E6-2,#2502 & zoom  [High Energy Theory seminar] The Vacuum Sector of Asymptotically Isometric Codes
417 2018-05-31 16:00  #1323, E6-2  Dynamic control of optical properties with gated-graphene metamaterials file
416 2023-05-17 16:30  Zoom  Detecting Hidden Photon Dark Matter via the Excitation of Qubits file
415 2023-02-20 16:00  Room 1323, KAIST Natural Sciences Lecture Hall(E6)  Physics of ferromagnet/superconductor junctions
414 2018-11-22 15:00  E6 Room(#1323)  Experimental and Computational Study on Physical Properties based on Granular System file
413 2021-02-17 09:00  Online  석학 대중 강연 및 강의 시리즈 file
412 2019-04-04 16:00  #1323, E6-2  Chiral spin-photon interaction at nanoscale file
411 2023-11-22 10:00  E6-2, #5301 & zoom  [High Energy Theory Seminar] Exact Quantum Algorithms to Recognize Quantum Phases of Matter
410 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
409 2023-06-16 13:00  E6-2, #2502  Quantum critical states under extreme conditions