[Joint CQSE & NCTS Special Seminar] Various Aspects of Microwave Circuit QED
Title: [Joint CQSE & NCTS Special Seminar] Various Aspects of Microwave Circuit QED
Speaker: Prof. Kyungsun Moon (Yonsei University)
Time: 2024/11/18 (Mon.) 14:20-15:20
Place: NCTS Physics Lecture Hall, 4F, Chee-Chun Leung Cosmology Hall, NTU
Online: https://nationaltaiwanuniversity-zbh.my.webex.com/nationaltaiwanuniversity-zbh.my/j.php?MTID=mbcdd07b0b13002d133be35255e389559
Abstract
I will give a review about quantum computing based on microwave Circuit QED, which we believe currently stands out as the most promising platform to realize the fault-tolerant quantum computing in the future. As for hardware aspects, we want to theoretically propose several methods to improve the fidelity of two-qubit entangler. As for 2D quantum manybody aspects, we investigate the circuit QED system with triple-leg stripline resonator(TSR). We delve into various geometric aspects of a hexagonal photonic lattice formed by TSRs, which has both upper and lower flat band. The inherent two-fold degenerate modes of the TSR resemble a behavior of orbitals in 2D lattice systems. Our analysis reveals how the system capitalizes on destructive interference to establish flat bands, underpinned by stabilized compact localized states. Furthermore, we explore the real-space topology corresponding to the flat bands by finding proper non-contractible loop states. As for building up quantum echosystem, I will introduce the institute of quantum information technology at Yonsei university and the current status of our quantum research efforts and quantum computing facility. Biography
1998~ : Professor, Department of Physics, Yonsei University 2022.3~2024.2: Founding Director, Institute of Quantum Information Technology
2005: Visiting Professor, Yale University
1994: Ph.D. in Physics, Condensed matter theory, Indiana University
