logo

korean english

게시판

Home > 게시판 > 세미나

고체전자구조계산연구실에서 서울대학교 물리학과 안준영 박사과정생을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁드립니다.



○ 일시: 2018년 8월 1일(수) 오후 4:00

○ 장소: 물리학과 세미나실 (31355호)

○ 연사: Junyeong Ahn  (Center for Theoretical Physics, Seoul National University)

○ Title: Band Topology in Nodal Line Semimetals with Z2 Monopole Charges



○ Abstract:  Since the discovery of topological insulators and semimetals, there have been many efforts to classify and characterize topological phases of matters. In recent years, three concepts have emerged to become new trends in this direction: fragile topology, higher-order topology, and gap-closing objects (nodes) with multiple topological charges. In this seminar, I will talk about those new concepts based on my recent work on nodal line semimetals hosting nodal lines with two topological charges: one is the well-known pi Berry phase, and the other is the Z2 monopole charge. New analytic methods that I developed for calculating Z2 monopole charges allow systematic studies on this exotic topological charge, which have been difficult up to now. In addition to the theoretical analysis, I will also present a possible material realization based on my colleagues’ first-principles calculations.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1058919
522 <6/24(Fri.) 1:30pm>Emergent geometry from field theory: Wilson's renormalization group revisited 2016.06.20 65429
521 <9/11(목)> The effects of dark matter elastic scattering on the cosmological signals 2014.09.01 65560
520 <Oct.2(Wed.)> Fundamental physics with high-energy atmospheric and cosmic neutrinos today and in the future 2019.09.26 65709
519 <Oct. 14(Wed.) 4:30 PM> 국방과학기술과 물리학 2015.10.07 65799
518 <9/24(수)> Design Principles of Cellular Networks 2014.09.18 65814
517 <12/17(Tue.)> Nuclear spectroscopy with low energy reaction thermal neutrons in ILL 2019.12.17 65886
516 <4/15(수)> 세미나 개최 안내 2015.04.09 65961
515 <10/2> What's the matter? 2013.09.26 65981
514 <Nov.22(Wed.) 4:30 PM> Dark Side of the Universe 2017.11.15 66405
513 <May.15(Wed.)> Three-body problems and three-body forces in Classic and Quantum Systems 2019.05.08 66459
512 <Nov.4(Wed.)>Progresses in Elucidating the Optoelectronic Properties of Perovskite Semiconductor 2020.10.28 66536
511 <3/22> 석학초청 특별강연 – Pyeongyang Advances Its Nuclear Program 2012.03.07 66543
510 <10/1(수)> 초전도 양자컴퓨터 - Superconducting qubit and circuit QED 2014.09.26 66545
509 <6/10(수) 오후4:30분> Closing in on the Axion Dark Matter hypothesis 2015.06.03 66612
508 <12/21(금)> Generic quantum spin ice 2012.12.03 66667
507 <4/3> 내 안의 파장을 바꿔라! 2013.03.29 66714
506 <2/9(월) 오전 11시> 특별 초청세미나 개최 안내 file 2015.02.03 66772
505 <Dec.30(Wed) 16:30> Some basics about the thermoelectricity; the semi-classical Boltzmann transport approach 2015.12.24 66855
504 <12/11> Is Nature Natural? 2013.12.05 66872
503 <12/10(수)> Magnetic Resonance Imaging: What is relevant to physics 2014.12.04 66881