logo

korean english

게시판

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 26980
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 968275
160 <Oct. 11(Wed.) 4:30 PM> Graphene Membrane for Imaging Molecular Assembly and Dynamics 2017.09.27 47028
159 <Oct. 18(Wed.) 4:30 PM> AlGaN/GaN HEMT 센서플랫폼 (KANCSensGaNTM) 기술 소개 file 2017.10.11 47911
158 <Nov. 1(Wed.) 4:30 PM> 광자와 이온트랩을 이용한 양자 정보처리 2017.10.25 44275
157 <Nov. 8(Wed.) 4:30 PM> 연성물질 기반 위상학적 결함구조의 상전이와 응 2017.11.01 88345
156 <Nov.15(Wed.) 4:30 PM> Mixed metal oxide films for energy and memory device applications 2017.11.08 54161
155 <Nov.22(Wed.) 4:30 PM> Dark Side of the Universe 2017.11.15 57372
154 <Nov.29(Wed.) 4:30 PM> The Intensity Frontier Experiment & SHiP 2017.11.22 44028
153 <Dec.6(Wed.) 4:30 PM> 실험핵천체물리학: 과거와 미래(Experimental Nuclear Astrophysics: Past and Future) 2017.11.29 43482
152 <Dec.13(Wed.) 4:30 PM>기본에 충실하고 새로움에 도전한다 - 자율주행자동차의 핵심 기술들 – 2017.12.07 50884
151 2018학년도 1학기 콜로퀴움 일정 2018.01.03 107484
150 <3/2(Fri.)11:00>Evolving magnetic interactions near a Kondo breakdown 2018.02.27 54047
149 <Mar.7(Wed.) 4:30 PM>Acoustic metamaterial: principles and applications of phononic crystals 2018.03.02 43176
148 <Mar.21(Wed.) 4:30 PM>깊은 땅속 중성미자 실험, DUNE 2018.03.14 43962
147 <3/16(Fri.)11:00> Superlattice phonons of two dimensional heterostructures 2018.03.16 59265
146 <Mar.28(Wed.) 4:30 PM>우주의 번개와 천둥 2018.03.27 42730
145 <April.4(Wed.) 4:30 PM>From Static to Dynamic Multiferroics 2018.03.29 56772
144 <April.11(Wed.) 4:30 PM>History of Superconductivity and its Future 2018.04.04 45716
143 <April.18(Wed.) 4:30 PM>금속의'블랙스완' 2018.04.11 41926
142 <May.2(Wed.) 4:30 PM> Machine learning and statistical physics 2018.04.23 49745
141 <May.9(Wed.) 4:30 PM> "How gold was produced in the universe?" 2018.05.02 60649