세미나 공지사항 센터소식 세미나 센터 자료실 포토갤러리 글보기SCQC_8th Seminar_2022년 01월 12일 (수)_이경훈 관리자 조회수328 2022-01-03 14:59- 날짜: 2022년 1월 12일 (수) 15:00 ~ 17:00- 주제: SCQC 정기 세미나- 장소: Zoom 회의- 초청연사 -이경훈(UC Berkeley) 15:00~17:00 "Visualizing moiré superlattices in twisted bilayer graphene and extending coherence in superconducting qubits" A moiré superlattice is produced by stacking lattice-mismatched 2D materials or by introducing misalignment. The moiré superlattice generates periodic potential that can strongly modify the electronic properties of the constituent 2D layers. However, the moiré superlattice may contain structural details such as atomic reconstruction into relaxed domains and local inhomogeneity. Thus, a high-resolution imaging probe is critical to correlate the moiré structure with the resulting material behavior. The first part of my talk, I will demonstrate the versatility of scanning impedance microwave microscopy (sMIM) in imaging the moiré in various graphitic systems at ambient conditions. In the second part of my talk, I will discuss superconducting circuits, one of the promising candidates in a race to build scalable and fault-tolerant quantum computers. However, the coherence of superconducting qubits still needs to be improved much for testing useful algorithms. One of the main sources of decoherence is the non-equilibrium quasiparticles (QPs), which can be viewed as broken Cooper pairs (CPs). Our effort toward mitigation of decoherence will be introduced. [1] K. Lee*, MIB Utama*, S Kahn*, et al., Science Advances 2020 (in press), ArXiv:2006.04000 (2020)[2] MIB Utama*, RJ Koch*, K. Lee*, et al., Nature Physics 2020 (in press), ArXiv:1912.00587 목록 댓글 [0] 더보기이전SCQC_9th_Seminar_2022년 04월 06일 (수)_조명래관리자 2022-03-31-SCQC_8th Seminar_2022년 01월 12일 (수)_이경훈관리자 2022-01-03다음SCQC_7th Seminar_2021년 12월 01일 (수)_허준석관리자 2021-11-22 Powered by MangBoard | 워드프레스 쇼핑몰 망보드