korean english


Home > 게시판 > 세미나

아래와 같이 세미나를 개최하오니 많이 참석해 주시기 바랍니다.


                    아       래


제목: Time-reversal anomaly in Josephson effect involving Majorana fermions

연사: 정  석  범 박사님 (UC Berkeley)

일시: 2012. 9. 20(목) 오전 11시


장소: 2nd floor, lounge room  (Bldg. #31)

초록: The Majorana surface state is a protected feature in a class of
superconductor known as 'topological superconductors'. In this paper,
we study the Josephson coupling between time-reversal invariant
topological superconductors and s-wave superconductors. The Majorana
surface states of time-reversal invariant topological superconductors
in all physical dimensions have a generic topological property which
we named as time-reversal anomaly. Due to the time-reversal anomaly,
the Josephson coupling prefers a nonzero phase difference between
topological and trivial superconductors. The nontrivial Josesphon
coupling leads to a half period Josephson oscillation for a small
enough DC voltage bias, which, however, reverts to the ordinary
Josephson oscillation under an in-plane magnetic field. This provides
an experimental signature of Majorana fermions in a time-reversal
invariant superconductor. 

번호 제목 날짜 조회 수
공지 2022학년도 1학기 콜로퀴움 일정 2022.01.10 28178
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 974999
500 <4/1(수) 오후4:30분> 과학기술과 미디어 2015.03.26 59855
499 <8/29(토)> 세미나 개최 안내 2015.09.01 59893
498 <Sept.18(Wed.)> Rare-earth: versatility and capability 2019.09.16 60184
497 <Sept.11(Wed.)> Fantastic physics and materials, how to find them? 2019.09.06 60203
496 <1/2> MYRRHA Project (EU 4세대 원전 사업) 2013.12.30 60379
495 <10/29(수)> 창조경제와 과학기술혁신시스템 2014.10.16 60531
494 <8/19(Mon) 13:30 ~ >Detection of cosmic rays in the PeV to EeV energy range file 2019.08.16 60561
493 <Nov. 11(Wed.) 4:30 PM> 그래핀 산업의 현황과 전망 2015.11.09 60591
492 <3/16(Fri.)11:00> Superlattice phonons of two dimensional heterostructures 2018.03.16 60639
491 <Oct. 12(Wed.) 4:30 PM> Silk as a biocompatible optical material 2016.10.05 60752
490 <6/10(수) 오후4:30분> Closing in on the Axion Dark Matter hypothesis 2015.06.03 60791
489 <5/20(수) 오후4:30분> Nonequilibrium statistical physics for Brownian heat engine 2015.05.14 60834
488 <7/15(Fri.) 14:00> Electronic quasiparticles in the quantum dimer model 2016.07.12 60849
487 <March 8(Tue) 18:00> Unsolved puzzles of Gamma-Ray Bursts 2016.03.03 61109
486 <5/26(화)> 세미나 개최 안내 2015.05.27 61475
485 <9/22(Thu.) 10:30> Bulk-boundary correspondence from the inter-cellular Zak phase 2016.08.29 61524
484 <11/22> Spin polarization of photoelectrons from a topological insulator 2012.10.22 61567
483 <10/11(Tue.) 15:00>Analysis of Individual Terrestrial Gamma-ray Flashes 2016.10.10 61571
482 <11/5(수)> 안전한 사회를 위한 과학의 역할 2014.11.01 61698
481 <2/9(월) 오전 11시> 특별 초청세미나 개최 안내 file 2015.02.03 61751