Title: Quantum corrals and quantum antidots

Speaker: Jiong Lu

Time: Oct. 27th (Fri.), 14:00

Zoom ID: 882 1089 8817

Abstract:

Atomic-precision manufacturing of artificial quantum states of matter with high digital fidelity and desired quantum states not only presents exciting opportunities for exploring fundamental quantum physics, but also marks a crucial step towards the realization of atomic-scale devices for future quantum technologies. The current strategy of creating these quantum architectures mainly relies on atom-by-atom, molecule-by-molecule manipulation, or molecular assembly through non-covalent interactions, which may lack sufficient chemical robustness required for on-chip quantum device operation at elevated temperature. In this talk, I will discuss the bottom-up fabrication of robust organic quantum corrals, as well as periodic quantum corrals (eg. molecular superlattices) with flat bands. I will also present atomically precise vacancy-assembled quantum antidots in a 2D transition metal dichalcogenide. The resulting antidots have tunable quantum hole states, which are robust to oxygen substitutional doping, and could have applications in quantum information technologies. 

Bio：

Prof. Dr LU Jiong holds Dean’s Chair Professorship, associate professor at Department of Chemistry and Institute for Functional Intelligent Materials at NUS. Dr. Lu received his bachelor’s degree from Fudan University (China) in 2007 and Ph.D. degree from National University of Singapore (NUS) in 2011, under the mentorship of Prof Kian Ping Loh. After that, he worked as a postdoc fellow in Graphene Research Centre at NUS, and then in Prof Mike Crommie research group at Department of Physics, UC Berkeley. His current research interests include atomic-scale materials design and investigation of atomic-scale quantum nanoscience in low-dimensional materials towards next-generation solid-state devices and atomically precise catalysis. His group has published more than 120 peer-reviewed papers in top-tier journals including Nature (1), Nature Nanotechnology (4), Nature Materials (2), Nature Electronics (1), Nature Communications, Science Advances, JACS, PRL etc. Two recent publications were selected as JACS Early Career Investigator 2021 virtual collection and JACS Reader's Pick 2022. Dr. Lu is a recipient of JMCA Emerging Investigators 2019, Young Scientist Award (2021), FOS NUS, and Young Researcher Award, NUS (2022).