특강세미나
제목
반도체물성연구소 세미나안내_11월24일(목) 오후 4:00
반도체물성연구소 | 2005-11-17 | 조회 838
본문 내용
반도체물성연구소 세미나를 다음과 같이 갖고자하니 관심있으신 분들의 많은 참석을 바랍니다.
제목: Electron transport through the coupled quantum-dots in quantum nanoscale rings
연사: Prof. Yong S. Joe
Department of Physics and Astronomy
Ball State University
Muncie, Indiana, U.S.A.
일시: 2005년 11월 24일 오후 4:00
장소: 반도체물성연구소 104호실
Abstract:
Stimulated by recent intriguing experiments with a quantum dot in an Aharonov-Bohm (AB) ring, I will discuss novel resonant phenomena by investigating the total transmission probability of nanoscale AB rings with embedded double quantum dots in one arm and a magnetic flux passing through its center. In this system, we show the overlapping and merging of both Breit-Wiger and Fano resonances as the interaction parameter between the dots changes. In the strong overlapping regime of Fano resonances, the transmission zeros leave the real-energy axis and move off from the real axis of energy in complex conjugate pairs. The periodic tuning of the Fano resonance for a fixed interaction parameter is also discussed as the magnetic flux increases.
This work was supported by the Indiana 21st Century Research and Technology Fund, and was partially supported by Korea Research Foundation and The Korean Federation of Science and Technology Socities Grant funded by Korea Government (MOEHRD, Basic Research Promotion Fund).
제목: Electron transport through the coupled quantum-dots in quantum nanoscale rings
연사: Prof. Yong S. Joe
Department of Physics and Astronomy
Ball State University
Muncie, Indiana, U.S.A.
일시: 2005년 11월 24일 오후 4:00
장소: 반도체물성연구소 104호실
Abstract:
Stimulated by recent intriguing experiments with a quantum dot in an Aharonov-Bohm (AB) ring, I will discuss novel resonant phenomena by investigating the total transmission probability of nanoscale AB rings with embedded double quantum dots in one arm and a magnetic flux passing through its center. In this system, we show the overlapping and merging of both Breit-Wiger and Fano resonances as the interaction parameter between the dots changes. In the strong overlapping regime of Fano resonances, the transmission zeros leave the real-energy axis and move off from the real axis of energy in complex conjugate pairs. The periodic tuning of the Fano resonance for a fixed interaction parameter is also discussed as the magnetic flux increases.
This work was supported by the Indiana 21st Century Research and Technology Fund, and was partially supported by Korea Research Foundation and The Korean Federation of Science and Technology Socities Grant funded by Korea Government (MOEHRD, Basic Research Promotion Fund).
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